The Mattermost Blog

When the Agent Belongs to the Team That Uses It

Sovereignty Is About Control, Not Geography 

5 Signs Your Regulated Team Has a Data Spillage Problem 

Mattermost, archTIS, Arqit, and Whitespace Collaborate to Deliver Sovereign, AI-Enhanced Operational Collaboration for Defence

Mattermost Professional Certification Is Here

Sovereign AI and Risk Management: A Framework for Secure Deployment

Mattermost security updates 11.7.2 (ESR), 11.6.4, 11.5.7, and 10.11.19 (ESR) released

Introducing Mattermost Agents V2: The Next Evolution of Intelligent Workflows

Mattermost and archTIS Collaborate to Deliver Secure Collaboration for Defence Operations

Mattermost and Arqit Partner to Strengthen Post-Quantum-Secure Collaboration for Defence Operations

Mattermost security updates 11.7.1 (ESR), 11.6.3, 11.5.6, and 10.11.18 (ESR) released

The Sovereignty Gap Nobody Talks About: Your Collaboration Platform

Your Last Incident War Room Was an Improvisation. Here's What a Governed One Looks Like.

Your Mission Environment Deserves More Than a Help Ticket

Sovereignty, Access Controls, and Compliance: Guide & Checklist for Secure Collaboration Tools

Mattermost Desktop App v5.13.6 ESR security update released

Mattermost security updates 11.6.2, 11.5.5, and 10.11.17 (ESR) released

Mattermost v11.7: Granular ABAC, Custom AI Prompts, User-Created Agents & More

AI Moved Into Your Collaboration Stack. Does Your Governance Know That? 

Your Control Plane Is Incomplete — And Your Collaboration Stack Is the Gap 

Why AI-Enabled Collaboration is Essential for Securing Financial Systems

The Next Layer of Coalition Mission Readiness: Collaboration Infrastructure

Why Coalition Operations Still Run on Shadow IT

When Mean Time to Ready, Respond, and Recover Indicates Mission Risk

Continuity Under Attack: Redefining Cyber Resilience for High-Velocity Threats 

Mission Partner Networks Are Consolidating, but Collaboration Remains Fragmented

Mattermost v11.6: Deeper Sovereign AI Integration, Hardened URL Privacy, Expanded Multi-Window Support & More

Mattermost security updates 11.5.2, 11.4.4, and 10.11.14 (ESR) released

Preventing Data Spillage: A Guide for U.S. Federal Agencies

Mattermost security updates Desktop App 6.1.1 and 5.13.15 (ESR) released

A Guide to the Federal Zero Trust Mandate: From Concept to Compliance

How Enterprise Chat Became Critical Infrastructure (Without Anyone Noticing)

Data Residency Is Not Sovereignty: Why Location Alone Doesn’t Deliver Control

The Role of Intelligent Mission Environments in Joint Operations: A Playbook

Cyber Resilience Isn't Recovery 

Mattermost Joins the European Cyber Security Organisation (ECSO)