Why Rocket.Chat security hardening starts before the first user logs in
Hardening a self-hosted Rocket.Chat means proving that the running platform, its database, its network path and its operating routine all match your security requirements, and the first step is making sure the foundation is sound before anyone signs in. Most of the security-relevant settings live in the admin console, but they only mean something if the version, the database and the edge in front of the application are configured correctly. A team that toggles options on an unsupported release or an unauthenticated database has not hardened anything.
The work is harder than changing settings for four reasons. First, the version must stay inside its support window. Rocket.Chat standard releases are supported for 6 months and LTS releases for 12 months, and after end of life a version receives no security or bug fixes. Rocket.Chat also says unsupported versions may lose the ability to connect with the official mobile and desktop clients. Second, MongoDB must run as an authenticated replica set. Rocket.Chat 8.x requires MongoDB 8.0 or later as a replica set, and that prerequisite comes before every other control in this page. Third, the reverse proxy and TLS termination must be correct, including how client addresses and WebSocket connections are passed through. Fourth, several security features depend on the plan. Starter includes LDAP and Active Directory authentication, single sign-on, multi-factor authentication, end-to-end encryption and retention, while Community is a free workspace with core messaging. Tamper-evident audit trails appear in the paid plan list, so confirm each feature against the plan you actually hold.
Responsibility is split across four owners, and each needs a named person. Platform settings sit with the Rocket.Chat administrators. The database sits with whoever runs MongoDB, including authentication, replica set membership and backups. The network covers segmentation, which ports are reachable, and the proxy and firewall rules. The operating process covers upgrade cadence, access reviews, retention decisions and incident handling. A gap in any one of these can undo settings configured correctly in another.
Before enabling anything, confirm three things with your team: the Rocket.Chat version you will run and its end-of-life date on the vendor's version durability page, the MongoDB version and whether it is a replica set with authentication enforced, and which plan covers each control you have been asked to evidence. Writing these answers down first turns the rest of the hardening work into a checklist you can verify rather than a set of assumptions.
The components and settings that carry Rocket.Chat security
A Rocket.Chat hardening review touches more than the application itself. The settings that matter sit across the admin console, the reverse proxy, the MongoDB replica set, the identity provider, file storage and the client connections. Each card below names the control surface for one layer and what you should confirm in your own environment.
Application and admin settings
Rocket.Chat's administration settings control registration, password policy, two-factor authentication, file upload rules, message retention and end-to-end encryption. Review each setting against your written policy and record who can change it. Confirm which workspace roles hold administrator rights, whether the installed version is still inside its supported window, and which apps are installed and what permissions each one has been granted.
Reverse proxy and TLS termination
The reverse proxy in front of Rocket.Chat is where encrypted client traffic ends and where forwarded headers are trusted. Check the proxy configuration for current TLS protocol versions and cipher settings, correct handling of WebSocket connections, and a forwarded-header policy that only trusts your own proxy. Confirm certificate ownership, renewal process and that plain HTTP access is redirected or refused.
MongoDB replica set and access rules
Rocket.Chat 8.x requires MongoDB 8.0 or later running as a replica set. Hardening here means enabling authentication, creating a dedicated database user with only the privileges Rocket.Chat needs, and restricting network access so that only the Rocket.Chat hosts can reach the database ports. Confirm the MongoDB version against the Rocket.Chat system requirements, and confirm that backups and replica members are protected the same way as the primary.
Identity provider connection
LDAP, Active Directory, SAML or OAuth connections decide who can sign in and which groups map to roles and channels. Review the bind account used for directory lookups, limit its read permissions, and confirm that disabled directory accounts are deactivated in Rocket.Chat. Check that multi-factor authentication is enforced for the accounts that need it, and document how sessions end when a user leaves the organization.
File storage and uploads
Uploaded files are stored outside the message database, and their location, access rules and retention determine how sensitive content is protected at rest. Confirm where the file store is hosted, whether it is encrypted, who can reach it directly, and whether file retention matches the message retention policy. Test that removed files cannot be downloaded through old links.
Mobile and desktop client connections
The official mobile and desktop clients connect to the same server endpoints as the web app, and unsupported server versions can lose the ability to connect with them. Confirm that clients are on supported releases, that push notification settings send only the content your policy allows, and that device sessions can be revoked. Test sign-in from a managed device and from a personal device under your mobile policy.
Which hardening choices to make before go-live
This table compares the main hardening decisions for a self-hosted Rocket.Chat deployment, with the conditions where each option fits and what it adds to daily operations. Read each row as a decision to settle with your security and platform owners before go-live, since several choices depend on the plan tier you select.
| Decision | Option and when it fits | Operational cost to accept |
|---|---|---|
| Version line | Standard release, supported for 6 months. Fits teams that can upgrade on a regular cadence and test apps and integrations each time. | More frequent upgrades and regression testing. Versions past end of life stop receiving security fixes and some cloud services stop working. |
| Version line (LTS) | LTS release, supported for 12 months. Fits regulated teams that need a longer window between upgrade projects and fewer change cycles. | Staying on the LTS line still requires patch and minor upgrades within the window. Confirm the exact end-of-life date for the line you choose in the version durability documentation. |
| Plan tier for MFA, SSO and end-to-end encryption | Starter includes LDAP, single sign-on, multi-factor authentication, end-to-end encryption and retention, capped at 50 users. Fits small pilots that stay within that limit. | User count caps the free tier. Confirm each control's availability on your tier before you commit to a design that depends on it. |
| Plan tier for scale and assurance | Commercial, Government or Defense, priced by quote. Fits larger user bases, group-based role mapping, tamper-evident audit trails and air-gapped operation. | Recurring license cost, quoted from the written scope. Confirm which audit and SSO features the quoted tier includes. |
| Reverse proxy and TLS model | Terminate TLS at a managed load balancer or at a proxy you run on the instance network. Fits teams with an existing certificate authority and monitoring practice. | Certificate issuance, renewal and proxy configuration become ongoing tasks. Test WebSocket behavior through the proxy after each change. |
| MongoDB network placement | Keep MongoDB on a private subnet reachable only from Rocket.Chat hosts. Fits any deployment that stores messages and files, which is most of them. | Firewall rules and private routing must be maintained as hosts scale. Backups and admin access need a separate, documented path. |
| MongoDB authentication model | Enable authentication with per-application database users and least-privilege roles. Fits teams with a separate database administration function. | Credential rotation and secret storage become recurring tasks. Confirm the MongoDB 8.0 replica set settings with your database team before go-live. |
| Retention policy scope | Apply retention per workspace, room type or channel category, based on your records obligations. Fits organizations with defined legal hold or deletion rules. | Policies must be reviewed as obligations change. Broad retention increases storage growth and backup size, and narrow retention may conflict with legal hold needs. |
| End-to-end encryption scope | Enable end-to-end encryption for direct messages or selected rooms where users need it. Fits teams handling sensitive conversations that accept the usage limits. | Encrypted content cannot be searched or moderated in the same way. Users need guidance on key handling and device changes. |
How to build a hardened Rocket.Chat step by step
This sequence takes a self-hosted Rocket.Chat instance from a supported baseline to a documented configuration. Each step closes with a check you can run, so you can confirm the control works before the next layer depends on it.
Confirm supported versions and replica set
Confirm that Rocket.Chat is on a release line that still receives security fixes, and that the release you plan to run supports your MongoDB version. Rocket.Chat 8.x requires MongoDB 8.0 or later running as a replica set, and a three-member set is strongly recommended for availability. Your administrator or platform engineer runs this step before any hardening work. Check the replica set by running rs.status() against the primary and confirming one PRIMARY and the expected secondaries report healthy. Check the server version in the administration panel against the support dates in the version durability documentation. The step is done when both checks pass and the versions are written into your change record.
Isolate MongoDB on a private network
Move MongoDB onto a private network segment that only Rocket.Chat application hosts can reach, and turn on authentication with least-privilege database users. The platform or network team makes the firewall and security group changes, and the application owner creates the database users. Do not expose the database to user networks, load balancers or the public internet. Check the result from a host in a user subnet: the database port should be unreachable, and the connection attempt should time out or be refused. Then check from an application host with the Rocket.Chat credentials to confirm that authenticated connections still succeed. The step is done when both tests give the expected results and the rules are saved as code or in the configuration record.
Place Rocket.Chat behind a TLS reverse proxy
Put a reverse proxy in front of Rocket.Chat so that users connect over HTTPS only, and let the proxy terminate TLS with a certificate issued by a trusted authority for your published host name. Configure the proxy to pass the original client address and protocol in forwarded headers, and set the site URL in Rocket.Chat to the public address. Wrong forwarded headers distort audit logs, rate limits and login location records, so this detail matters. Check the certificate chain with a TLS client tool, confirming that the full chain is served and validates for the host name. Then sign in from a test account and confirm that the audit entry shows the client address you expect. The step is done when the chain validates and plain HTTP redirects or is refused.
Restrict administrative access
Limit the administrator role to a small named group, and separate day-to-day administration from ordinary user accounts. Remove or disable accounts that no longer need elevated roles, and confirm that default or shared credentials are gone. Where your network allows, restrict the administration pages to a management network or to users connected through a VPN or zero-trust access layer. The workspace owner or security lead approves the role list, and the administrator performs the change. Check the result by signing in as a standard user and trying to open the administration area, which should be denied. Then export or screenshot the list of users holding admin roles and compare it with the approved list. The step is done when the two lists match and the denied access test is recorded.
Connect identity provider and enforce MFA
Connect Rocket.Chat to your corporate identity provider through LDAP, Active Directory or single sign-on, so that account lifecycle, deprovisioning and password policy follow your directory. Then turn on multi-factor authentication and require it for all accounts, with a documented exception process for service accounts. The identity team owns the directory configuration, and the Rocket.Chat administrator owns the workspace settings. Check the flow by signing in with a test user who has been removed from the directory group, which should fail, and with an active test user, which should prompt for the second factor. Confirm that a local password login is not available to regular users unless your policy allows it. The step is done when disabled users cannot sign in and MFA is required in every tested path.
Set retention and end-to-end encryption policies
Decide how long messages and files are kept, which channels or direct messages must use end-to-end encryption, and how deletion requests will be handled. Apply the retention settings globally and by room type where your plan allows, and turn on end-to-end encryption for the rooms that need it. Retention and end-to-end encryption are included in the free Starter plan, but confirm the exact options available on your plan before you rely on them. The compliance or legal owner signs off on the retention schedule, and the administrator applies it. Check retention by running a test on a disposable channel with a short test window in a non-production workspace. Check encryption by creating an encrypted room and confirming the setting shows as enabled for members. The step is done when both tests behave as the written policy describes.
Review app permissions and integrations
Build an inventory of every installed app, integration, webhook and bot, and record who approved each one and what permissions it requests. Remove anything unused, and limit installations to apps from sources your security team has reviewed. Pay close attention to incoming and outgoing webhooks, because they can post or read content outside the normal user model. The security team reviews the inventory, and the administrator makes the removals and permission changes. Check the result by comparing the live list in the administration panel with the approved inventory, and confirm that no integration appears that lacks an owner and a documented purpose. The step is done when the two lists match and each remaining integration has a named owner.
Record the baseline configuration
Write down the hardened configuration as a baseline that the next upgrade, change or incident review can be checked against. Include the release and MongoDB versions, proxy and TLS settings, network rules, identity and MFA settings, retention and encryption policies, admin roster and approved integrations. Store the baseline under version control or in your configuration management system, with a named owner and a review date set by your policy. The platform team produces the record, and the security lead approves it. Check the baseline by exporting the current settings and comparing them with the document, which should show no unexplained differences. Repeat this comparison after each upgrade. The step is done when the export and the document match and the owner has signed off.
How to test that the hardening holds and fails safely
The hardening only counts if you can show it works and that it fails closed. Run a set of repeatable checks against the running system, record the results, and compare them with the configuration baseline. Start with the externally visible surface: run a TLS configuration scan against the public hostname of the Rocket.Chat reverse proxy and confirm that only the protocol versions and cipher suites in your standard are accepted, that the certificate chain is complete and unexpired, and that plain HTTP redirects or is refused. Repeat the scan after every proxy change, because a certificate renewal or a new listener can quietly reintroduce a weaker setting.
Next, test the database boundary. From a host outside the application subnet, attempt to connect to the MongoDB replica set members without credentials and confirm the connection is refused at the network layer or rejected by authentication. Then repeat the attempt from inside the application subnet with the correct service account to confirm the application still connects. Verify that the MongoDB service account holds only the roles the application needs. Ask your database team to confirm that the replica set members are not reachable on their public interfaces, since a firewall rule that works today can be removed during maintenance.
Check identity controls at the application layer. Confirm that multi-factor authentication is enforced for administrator accounts and for standard accounts, using test users in each group and attempting a login without the second factor. Validate retention on a dedicated test channel: post known messages, apply the retention policy you have configured, and confirm that messages are removed on schedule and that the behavior matches what your records policy requires. Confirm that app installation is limited to the roles you approved by attempting an install with a standard account and with an approved administrator account. Keep the screenshots, timestamps and account names for each test.
Simulate failures before users do. Take the identity provider offline in a test environment, or block its address, and confirm that local administrator access still works only through the accounts and controls you documented, and that standard users cannot fall back to a local password path you did not intend to keep. When the proxy, the database or the identity provider is unavailable, the expected behavior is that Rocket.Chat refuses access rather than serving content without authentication. Confirm this by stopping each component in turn and checking that no page, API endpoint or websocket session returns data without a valid session. Ask your vendor or your own engineers to confirm the exact behavior of your version, because it varies with configuration.
Store the evidence with the configuration baseline, not in a separate folder that nobody opens. Each record should name the control, the test, the date, the version of Rocket.Chat and MongoDB tested, the person who ran it, and the result. Rerun the full set after each Rocket.Chat upgrade and each MongoDB version change, since support windows require regular upgrades and a change can reopen a gap. An assessor reviewing your controls will ask for this evidence, and DeployOpen prepares it for your environment but does not issue any audit opinion; an independent auditor makes that judgment.
Access control, secrets and app permissions to lock down
Most Rocket.Chat exposure comes from who can change the workspace, which apps and integrations can act inside it, and where credentials live. The cards below cover the access and secret controls to review before go-live and after every upgrade, with the settings to confirm for the version you install.
Separate administrator roles
Rocket.Chat ships with a broad administrator role that can change settings, manage users and install apps. Give day-to-day moderation, user administration and workspace configuration to separate roles, and keep the full administrator role for a small named group. Review the role permissions in the administration panel for your installed version, because the permission names and their grouping can change between releases.
Restrict who can install apps
Apps and integrations run with access to messages and users, so installing one is a trust decision. Limit the permissions that allow installing, enabling or updating apps to a narrow set of administrators, and confirm in the Marketplace and private app settings whether members with lower roles can still add integrations. Record which apps are enabled and why.
Manage incoming and outgoing webhook tokens
Incoming webhooks accept posts from outside systems, and outgoing webhooks send channel messages to external URLs. Each token is a credential, so issue one per integration, restrict the channel and user it posts as, and rotate tokens when an owner leaves or a system is retired. Confirm the outgoing webhook URL allow list and token settings in your version's integration pages.
Keep database and replica set secrets out of the image
MongoDB credentials and the replica set key are used to authenticate the database and cluster members. Passing them as plain environment values in a compose file or Helm values committed to source control exposes them to anyone with repository access. Store them in your secrets manager or orchestrator secret objects, restrict read access to the deployment identity, and confirm the exact variables your chosen Rocket.Chat release expects.
Limit administrator sessions
An administrator session can change security settings, export data and add apps, so its lifetime and exposure matter. Enforce multi-factor authentication for administrator accounts, shorten session and idle timeouts where the product allows, and review active sessions after staff changes. Check the session and login settings in the administration panel for the installed version, as available options differ by plan.
Restrict outbound network access
Rocket.Chat contacts external services for push notifications, app downloads and outgoing webhooks, and a compromised app or webhook can reach any destination the server can. Where your network allows, permit outbound traffic only to the services your deployment needs and to your internal systems. Test notifications, Marketplace access and integrations after each egress rule change, and confirm which endpoints your version and plan require.
What drives hardening effort and how to keep each part down
This table lists the factors that change how much work a Rocket.Chat hardening project takes, and what to standardize or decide early to keep each one contained. Read each row as a lever: the driver on the left, why it matters, and the step that limits its effect. The main takeaway is that most effort grows with repetition across environments and integrations, so one reviewed baseline and an early plan decision matter more than any single setting.
| Driver | Why it changes effort | How to keep it down |
|---|---|---|
| User count and architecture tier | Concurrent users determine whether a single instance with a MongoDB replica set fits, or whether load-balanced instances or Kubernetes microservices are needed. Each tier adds TLS termination points, node-to-node settings and failover checks to review. | Confirm peak concurrent users early against the reference architecture tiers. Stay on the single-instance design when it fits, and fix the plan tier before hardening so you do not redo controls after a later architecture change. |
| Number of environments | Development, staging and production each need the same baseline for TLS, MongoDB authentication, network rules and app permissions. Drift between them is a common source of rework and failed verification. | Maintain one configuration template with environment-specific values kept in separate variables. Apply the same checklist to every environment and test changes in staging before production. |
| Identity sources and groups | Each LDAP or Active Directory source, SAML or OAuth provider, and group that maps to a role or channel needs its own mapping, testing and review of who gets administrator rights. | Inventory identity sources and groups before the work starts. Reduce the number of mappings by consolidating groups at the identity provider, and agree on a short list of roles that Rocket.Chat must recognize. |
| Installed apps and integrations | Every Marketplace or private app, webhook and bot needs a permission review, a check of the data it can read, and a test after each Rocket.Chat release. | Limit the app catalog to approved apps with a named owner. Disable unused integrations and grant apps only the permissions they need. Remove stale webhooks as part of the hardening sign-off. |
| Retention and compliance evidence | Retention periods, message deletion settings, end-to-end encryption choices and audit trail requirements define what must be configured, documented and shown to an assessor. Tamper-evident audit trails are listed on paid plans, so evidence needs may affect the plan decision. | Write the retention and encryption requirements as a short policy before configuring anything. Ask whether your assessor expects audit trails, then confirm the plan tier that provides them. Keep a single evidence folder that maps each setting to its requirement. |
| Air-gapped or internet-connected deployment | An air-gapped network needs images, updates and dependencies moved across the gap, and push notifications and mobile clients work differently without internet access. Air-gapped deployment is a paid-plan capability, so plan availability must be confirmed first. | Confirm the deployment model and plan availability before design. For air-gapped networks, document the transfer process for images and updates and test it once end to end. For connected networks, confirm which cloud services are used and allow only those outbound routes. |
| Upgrade cadence and support window | Standard releases are supported for 6 months and LTS releases for 12 months. A version past end of life gets no security fixes and can lose access to cloud services and official clients, so every hardening change must survive the next upgrade. | Choose an LTS line where your change process allows it, and record the end-of-life date for the chosen version. Automate configuration checks so each upgrade can be verified against the same baseline. |
How hardening differs for single node, high availability, Kubernetes and air-gapped deployments
A single-node deployment runs one Rocket.Chat instance beside its database and reverse proxy, usually on one host or a small set of virtual machines. The hardening work centers on isolating each component so a compromise of one service does not expose the others. Rocket.Chat 8.x requires MongoDB running as a replica set, and a three-member replica set is strongly recommended for high availability, so even a single-node design should be planned with that member count in mind.
Extra checks for this model:
- Confirm that the reverse proxy is the only process listening on public interfaces, and that MongoDB and the Rocket.Chat port are bound to the internal network only.
- Restrict MongoDB to the application host with host firewall rules and enforce database authentication.
- Separate the proxy and database onto distinct service accounts and file permissions where the host allows it.
- Record how the replica set members will be placed if you later expand to three hosts, since a one-host replica set offers no failover.
Confirm the MongoDB member count, your backup target, and the host firewall policy with your own platform team before the first production user is onboarded.
High availability runs multiple Rocket.Chat instances behind a load balancer. The reference architecture for this design links the instances with NATS and requires a paid plan. Hardening shifts from one server to a shared-state design, where TLS termination, session handling and secrets must behave the same way on every node. A weak setting on one instance becomes a weakness of the whole service.
Extra checks for this model:
- Terminate TLS consistently at the load balancer or on every instance, with the same certificate chain, cipher policy and protocol versions.
- Confirm that session affinity or shared session storage behaves as expected, so a logout or revoked session takes effect on all nodes.
- Restrict NATS to the internal instance network and enable authentication between cluster members.
- Synchronize configuration and secrets across instances through one source of truth, not hand-edited copies.
- Verify that the three-member MongoDB replica set and NATS are both covered by monitoring and failover tests.
Confirm the NATS authentication and clustering options, and the paid plan terms that cover multi-instance use, with Rocket.Chat before design sign-off.
Kubernetes deployments use the official Helm chart and split Rocket.Chat into microservices. The reference architecture suggests this design above 5,000 concurrent users, and the microservice design requires a paid plan. The hardening task changes from host isolation to cluster controls: which pods can talk to each other, where secrets live, and how traffic enters the cluster. Node.js is bundled in the official Docker image and Helm chart, so the container image itself is part of the patch cycle.
Extra checks for this model:
- Apply network policies so only the ingress controller reaches Rocket.Chat pods, and only the application pods reach MongoDB and NATS.
- Store database credentials and other secrets in a managed secret store, not in plain values files committed to version control.
- Terminate TLS at the ingress with certificates managed in the cluster, and confirm that internal traffic between services is encrypted or restricted to the cluster network, based on your policy.
- Set pod security settings such as non-root execution, read-only file systems where supported, and dropped capabilities.
- Pin chart and image versions and confirm the supported release line before each upgrade.
Confirm the chart values for each microservice, the supported Kubernetes versions and the network policy requirements with Rocket.Chat and your cluster team, because chart defaults change between releases.
An air-gapped deployment runs in an isolated network with no direct internet path. It is a paid-plan capability and is not available on the Starter plan. The main hardening changes are around trust and transfer: certificates must come from an authority inside the isolated network, and images, updates and dependencies must cross the gap through a controlled process. Push notifications and mobile clients depend on cloud services that cannot be reached from inside the isolated network, so their behavior must be confirmed before users rely on them.
Extra checks for this model:
- Run an offline certificate authority, distribute its root to all clients and devices, and plan the renewal process before certificates expire.
- Transfer container images and updates by a documented, scanned and signed process, and keep a record of each import.
- Confirm which mobile and desktop client features work without internet access, including push notifications, and communicate the limits to users.
- Keep a tested offline backup and restore procedure, since no external service is available for recovery.
- Track the supported release line, because unsupported versions lose access to cloud services and may lose compatibility with official mobile and desktop clients.
Confirm the push notification options, the offline update process and the paid plan terms for air-gapped use with Rocket.Chat before finalizing the design.
What to monitor, back up, upgrade and document after hardening
Hardening is not finished at go-live. A self-hosted Rocket.Chat deployment drifts as patches land, certificates renew, users are added and apps are installed, so the operating routine matters as much as the initial settings. The first ongoing task is version tracking. Record the installed Rocket.Chat version, check it against its support window, and read the release notes for every patch on your line. Rocket.Chat standard releases are supported for 6 months and LTS releases for 12 months. After end of life, a version receives no security or bug fixes, and cloud services such as the push notification gateway stop working. Rocket.Chat also states that unsupported versions may lose connectivity with the official mobile and desktop clients, so an expired version can break the client experience before anyone notices a security gap. Confirm your current end-of-life date on the version durability page before each planning cycle.
Monitoring should cover the signals that show hardening is slipping. Watch MongoDB replica set health, including primary election events and member lag, because Rocket.Chat 8.x depends on a replica set and a degraded set shows up first as messaging or file problems. Track certificate expiry on the reverse proxy and any internal endpoints so renewals never depend on someone remembering a calendar date. Collect failed authentication attempts from Rocket.Chat and from the identity provider, and set an alert threshold your security operations team agrees on. Confirm where these logs are stored, how long they are retained, and whether they reach your central logging platform. The exact log fields and alert options depend on your Rocket.Chat version and deployment method, so verify them in your own environment before you write alert rules.
Backups need two parts that restore together: the MongoDB replica set and the file storage that holds uploads. A MongoDB backup that is not matched to the matching file store leaves attachments missing or orphaned after a restore. Schedule both, store copies outside the primary failure domain, and encrypt them under the same key management rules as production data. The control that matters most is the restore test. Run a restore into an isolated environment on a regular schedule, confirm that users can sign in, that channels and messages load, that attachments open, and that encryption and retention settings still apply. Record the time the restore took and the data that was missing or late. An untested backup is an assumption, and auditors and incident responders will ask for the restore record rather than the backup job log.
Re-testing belongs on the same calendar. Any Rocket.Chat upgrade, MongoDB version change, reverse proxy change, identity provider change or new app triggers a targeted check of the controls it could affect. Re-run the TLS configuration review, confirm MFA and session settings still enforce, check app permissions against the approved list, and verify that retention and end-to-end encryption behave as designed. Agree with your testing provider which checks are repeated after each change and which run on a fixed schedule. Scope and cost depend on the number of changes, the apps in use and the environment, so ask for those assumptions in writing.
The hardening baseline document is the handover artifact. It lists each setting that was changed from default, the value chosen, the business or security reason, the owner who approves changes, the component it applies to, and the evidence that proves the setting is in place, such as a configuration export, a screenshot from the administration console or a test result. Keep it under version control next to the deployment code, and update it with every upgrade or app change. A new engineer or an external auditor should be able to read it and confirm the current state without asking the original builders. Ask any implementation partner to deliver this baseline with the environment, and confirm who will maintain it after handover.
Common questions about Rocket.Chat security hardening
Can our own team harden Rocket.Chat without outside help?
Yes, many teams can, if someone owns the platform and has the skills to work through each area. Hardening covers supported version selection, TLS and reverse proxy setup, MongoDB authentication and network isolation, MFA, retention and end-to-end encryption settings, and app permissions. Your team should test each change in a non-production copy, record every setting, and collect evidence as it goes. The harder question is who maintains the configuration afterward, because Rocket.Chat releases recur on a 6-month standard or 12-month LTS cycle and each upgrade can change settings. Outside help is most useful when internal capacity is limited, several environments need the same baseline, or a fixed deadline applies.
What drives the cost of Rocket.Chat hardening work?
Scope drives cost more than any single setting. The main inputs are the plan tier, since the free Starter and Community plans and the paid Commercial, Government and Defense plans include different features. Other inputs are the deployment model, whether a single instance, load-balanced instances or Kubernetes with the official Helm chart, the number of environments such as production, staging and test, the number of integrations and identity sources to review, and how much compliance evidence you need. Paid plans are priced by quote, so confirm your plan with Rocket.Chat before scoping. Ask for a quote that separates one-time hardening work from recurring items such as upgrades, testing and ongoing support.
How long does a Rocket.Chat hardening project take?
Duration follows the written scope, not a fixed number of days. The timeline depends on the number of environments, the deployment model, how many integrations and identity sources need review, and whether a version upgrade must come first. Most DeployOpen engagements are fixed scope, with scope, deliverables and timelines agreed in writing before work starts. Ask any provider for the phases, the dependencies on your change windows, the testing steps before production, and what happens to the schedule if access to your proxy, database or identity provider arrives late. A clear dependency list is usually a better guide than any single estimate.
What access must we give a Rocket.Chat hardening partner?
Provide access to the reverse proxy, the MongoDB deployment, the identity provider, and admin accounts for Rocket.Chat and the hosting platform. Limit that access to the environments named in the statement of work. You should also name one owner who can approve changes, make decisions when options conflict, and receive the final documentation. Other useful inputs include current configuration exports, planned change windows, a non-production environment for testing, and a list of installed apps and integrations. Confirm with your security team how credentials will be issued, stored and removed when the engagement ends.
Does the free Rocket.Chat plan include security features?
The free Starter plan includes several security features: LDAP and Active Directory authentication, single sign-on, multi-factor authentication, end-to-end encryption, retention and read receipts, for up to 50 users. The free Community workspace allows up to 100 concurrent users with core messaging. Having a feature available does not mean it is configured correctly, so you still need to set TLS, MongoDB isolation, retention periods and app permissions. Paid plans add capabilities such as SAML and LDAP group mapping and tamper-evident audit trails. Check Rocket.Chat's plans page for current limits before you decide, because plan details can change.
Does hardening Rocket.Chat make our deployment compliant?
No, hardening alone does not make a deployment compliant. Hardening reduces exposure and produces configuration records and evidence, but compliance also depends on your scope, controls, policies and operating records. Compliance assessors and auditors perform assessments and issue the reports or certifications. DeployOpen prepares systems, controls and evidence for those assessments, but does not issue audit reports, attestations or certifications. Before work starts, ask your assessor which controls and evidence they expect for the Rocket.Chat environment, and bring that list into the scope so the hardening work and the evidence package match.
Which Rocket.Chat versions should we run in production?
Run a version that is still inside its support window, and plan the next upgrade before end of life. Standard releases are supported for 6 months and LTS releases for 12 months. After end of life, a version receives no security or bug fixes, and cloud services such as the push notification gateway, Marketplace and Omnichannel integrations stop working. Unsupported versions may also lose the ability to connect with the official mobile and desktop clients. Rocket.Chat 8.x requires MongoDB 8.0 or later running as a replica set. Check the version durability documentation and the GitHub releases page for current patch levels before choosing a target version.
How DeployOpen scopes, hardens and hands over Rocket.Chat security work
DeployOpen treats Rocket.Chat security hardening as a fixed-scope piece of work inside your own infrastructure, covering the application, its MongoDB database, the reverse proxy and the identity settings. Each engagement starts from a written scope, and ongoing support can follow as a retainer.
How we scope
- Confirm the Rocket.Chat version and support window your team runs, and the upgrade path to a supported release.
- Inventory the TLS, reverse proxy, MongoDB, MFA, retention and end-to-end encryption settings currently in use.
- Agree in writing which apps, integrations and admin roles fall inside the hardening work and which do not.
How we build
- Apply TLS and reverse proxy configuration, then verify certificates and headers against the agreed baseline.
- Enable MongoDB authentication and restrict network access so only Rocket.Chat hosts reach the database replica set.
- Configure MFA, retention and end-to-end encryption settings, and review app permissions against the approved list.
How we hand over
- Deliver a configuration record, hardening checklist and evidence of each control tested in your environment.
- Document how to rotate MongoDB credentials, renew certificates and review app permissions after each release.
- Walk your administrators through the runbook so your team can operate the hardened settings without DeployOpen.
How we support
- Offer ongoing support and upgrade testing as a retainer, covering security patches for your supported version line.
- Re-check hardening settings after each Rocket.Chat or MongoDB upgrade before they go into production.
- Confirm with your team the scope of any follow-on work, which is quoted separately from the original fixed scope.
