Mattermost is a secure collaboration platform built for organizations that need to keep their most critical information safe.https://mattermost.com/en-ushttps://mattermost.com/blog/zero-trust-in-practice-identity-part-3-the-roadmap-to-optimal/https://mattermost.com/blog/zero-trust-in-practice-identity-part-3-the-roadmap-to-optimal/This is the third part in the Identity series. Part 1 covered Foundation-stage controls: federated identity, MFA, directory sync, and audit logging. Part 2 covered Advanced identity: ABAC, dynamic policy evaluation, and continuous access enThu, 17 Sep 2026 06:16:12 GMTPlatformJustin Reynoldshttps://mattermost.com/blog/mattermost-v11-11-is-now-available/https://mattermost.com/blog/mattermost-v11-11-is-now-available/Mattermost v11.11 gives content reviewers a fast, transparent way to understand who may have seen a flagged post with the new post exposure radius report feature. The team is heads-down on Mattermost v12.0, shipping in October 2026 with a lWed, 16 Sep 2026 06:00:00 GMTPlatformMattermosthttps://mattermost.com/blog/operational-resilience-why-it-must-be-a-daily-practice/https://mattermost.com/blog/operational-resilience-why-it-must-be-a-daily-practice/Operational resilience is often discussed at the point where disruption has already begun. A system has gone down. Communications are unavailable. An incident response team has been activated. Leaders need answers quickly, while regulators,Tue, 15 Sep 2026 10:01:44 GMTuncategorizedSteve Berichonhttps://mattermost.com/blog/zero-trust-in-practice-identity-part-2-advanced-identity-from-static-roles-to-dynamic-access/https://mattermost.com/blog/zero-trust-in-practice-identity-part-2-advanced-identity-from-static-roles-to-dynamic-access/This is the second part in an ongoing series on Zero Trust maturity for the Identity pillar. Part 1 covered the Foundation stage: federated identity, MFA, directory sync, and audit logging. This post covers the Advanced maturity stage. The Thu, 10 Sep 2026 06:19:59 GMTPlatformJustin Reynoldshttps://mattermost.com/blog/ai-audit-trails-the-missing-piece-of-enterprise-ai-adoption/https://mattermost.com/blog/ai-audit-trails-the-missing-piece-of-enterprise-ai-adoption/Key Takeaways AI is no longer a pilot project sitting off to the side of enterprise workflows. It drafts responses, triages tickets, and increasingly takes actions inside operational systems. As AI moves closer to real decisions, regulatorTue, 08 Sep 2026 07:52:43 GMTPlatformJustin Reynoldshttps://mattermost.com/blog/zero-trust-in-practice-identity-part-1-building-the-identity-foundation/https://mattermost.com/blog/zero-trust-in-practice-identity-part-1-building-the-identity-foundation/Why “never trust, always verify” starts with your collaboration platform This is the first part in a three-part series on moving from Foundation to Advanced Zero Trust for the identity pillar. Each post maps to a maturity stage in the CISA Tue, 01 Sep 2026 06:00:00 GMTPlatformJustin Reynoldshttps://mattermost.com/blog/what-will-be-deprecated-in-mattermost-v12-0-october-2026/https://mattermost.com/blog/what-will-be-deprecated-in-mattermost-v12-0-october-2026/Mattermost v12.0 will ship in October 2026 with several deprecations, plus a handful of smaller breaking changes, that self-hosted admins, integration authors, and plugin developers should plan for. RHEL 7 and RHEL 8 will no longer be suppoThu, 27 Aug 2026 06:00:00 GMTPlatformAmy Blaishttps://mattermost.com/blog/sovereign-ai-vs-public-ai-choosing-the-right-architecture-for-regulated-organizations/https://mattermost.com/blog/sovereign-ai-vs-public-ai-choosing-the-right-architecture-for-regulated-organizations/Key Takeaways AI adoption is now a baseline requirement for defense, government, and critical infrastructure organizations. The deployment model behind that adoption determines whether an organization controls its own data or hands that conMon, 24 Aug 2026 08:34:11 GMTPlatformJustin Reynoldshttps://mattermost.com/blog/can-agentic-ai-work-in-air-gapped-environments/https://mattermost.com/blog/can-agentic-ai-work-in-air-gapped-environments/Key Takeaways Agentic AI conversations tend to assume a live internet connection. The AI model calls a cloud API for every response, the agent pulls from a hosted vector database, and the model itself receives patches and version updates auTue, 18 Aug 2026 05:49:15 GMTCollaborationJustin Reynoldshttps://mattermost.com/blog/mattermost-v11-10-is-now-available/https://mattermost.com/blog/mattermost-v11-10-is-now-available/Mattermost v11.10 gives security admins tighter, faster control over who accesses what. ABAC governance now reaches team-level membership and native user attributes let admins write policies without any extra integration work. AI agents getFri, 14 Aug 2026 06:00:00 GMTPlatformMattermosthttps://mattermost.com/blog/what-is-an-air-gapped-network/https://mattermost.com/blog/what-is-an-air-gapped-network/An air-gapped network has zero connection to the internet or outside networks. See how it compares to isolated, segmented, and DDIL systems.Mon, 10 Aug 2026 06:00:00 GMTCollaborationJustin Reynoldshttps://mattermost.com/blog/your-teams-are-already-translating-sensitive-data-the-question-is-where-it-goes/https://mattermost.com/blog/your-teams-are-already-translating-sensitive-data-the-question-is-where-it-goes/When your employees are translating sensitive data, do you know where the information ends up?Fri, 07 Aug 2026 06:00:00 GMTCollaborationMattermosthttps://mattermost.com/blog/the-collaboration-gap-in-zero-trust-why-sovereignty-cant-stop-at-the-perimeter/https://mattermost.com/blog/the-collaboration-gap-in-zero-trust-why-sovereignty-cant-stop-at-the-perimeter/The core principle of Zero Trust is simple: don't assume trust based on the network. But many organizations don't apply that idea to collaboration.Mon, 03 Aug 2026 07:46:46 GMTCollaborationMattermosthttps://mattermost.com/blog/agentic-ai-for-mission-critical-operations-what-enterprise-leaders-need-to-know/https://mattermost.com/blog/agentic-ai-for-mission-critical-operations-what-enterprise-leaders-need-to-know/Interested in integrating agentic AI into your organization? Review our guide to enterprise AI agents and agentic AI security today.Wed, 29 Jul 2026 06:25:39 GMTCollaborationaiJustin Reynoldshttps://mattermost.com/blog/secure-mobile-collaboration-how-federal-private-organizations-can-protect-mobile-data-at-scale/https://mattermost.com/blog/secure-mobile-collaboration-how-federal-private-organizations-can-protect-mobile-data-at-scale/Unsecured mobile communication puts data at risk. Learn the best practices and features to look for in secure enterprise mobile collaboration tools.Tue, 21 Jul 2026 06:00:00 GMTCollaborationJustin Reynoldshttps://mattermost.com/blog/mattermost-v11-9-is-now-available/https://mattermost.com/blog/mattermost-v11-9-is-now-available/Mattermost v11.9 puts more of your access control architecture in the hands of the people closest to the mission.Thu, 16 Jul 2026 06:00:00 GMTReleasesMattermosthttps://mattermost.com/blog/how-to-future-proof-secure-collaboration-at-your-organization/https://mattermost.com/blog/how-to-future-proof-secure-collaboration-at-your-organization/Learn how to choose a secure collaboration platform that can keep pace with your security and compliance requirements.Wed, 15 Jul 2026 12:14:36 GMTCollaborationJustin Reynoldshttps://mattermost.com/blog/what-happens-after-the-alert-fires/https://mattermost.com/blog/what-happens-after-the-alert-fires/When incident response is codified—when the playbook runs automatically and every step is logged without anyone touching it—the 20 minutes becomes five.Mon, 06 Jul 2026 07:45:52 GMTCollaborationMattermosthttps://mattermost.com/blog/zero-trust-stops-at-the-login-screen-adversaries-know-it/https://mattermost.com/blog/zero-trust-stops-at-the-login-screen-adversaries-know-it/Learn why the collaboration layer is the most overlooked enforcement gap in enterprise Zero Trust architecture.Fri, 03 Jul 2026 06:00:00 GMTCollaborationMattermosthttps://mattermost.com/blog/when-the-shift-changes-the-prompt-stays/https://mattermost.com/blog/when-the-shift-changes-the-prompt-stays/Learn how your team can use custom prompts in Mattermost Agents V2 to accelerate mission-critical workflows and keep your team aligned.Thu, 02 Jul 2026 11:19:12 GMTPlatformChristopher