Mattermost

Security and trust center evidence

Secure Collaboration for Technical Teams

mattermost.com CollaborationLast verified 26 Oct 2026

Mattermost has 1 registry-verified row in the CertReports index, last verified 26 Oct 2026. The strongest row is EU-US Data Privacy Framework: Active: EU-US Certification, SW-US Certification, UK Extension Certification. This page is independent of the vendor’s own trust centre: dates, sources and caveats come from CertReports captures.

Reviewer brief

Mattermost is listed in the EU-US Data Privacy Framework registry as active, covering the EU-US, Swiss-US and UK Extension certifications, certified since 3 Mar 2019 with a current expiry of 11 Mar 2027, per a registry check as of 17 Sep 2026. No public evidence found for a SOC 2 report for Mattermost as of 17 Sep 2026. No public evidence found for ISO/IEC 27001 certification for Mattermost as of 17 Sep 2026. No public evidence found for a HIPAA business associate agreement for Mattermost as of 17 Sep 2026. No public evidence found for PCI DSS validation or FedRAMP authorization for Mattermost as of 17 Sep 2026.

EU-US Data Privacy Framework: listed as active (EU-US, SW-US, UK Extension), certified since 3 Mar 2019, expires 11 Mar 2027, as of 17 Sep 2026.
SOC 2, ISO/IEC 27001: no public evidence found, as of 17 Sep 2026.
HIPAA BAA, PCI DSS, FedRAMP: no public evidence found, as of 17 Sep 2026.

Facts only, each dated; nothing here is inferred, scored or advised. Brief generated 20 Sep 2026; it is regenerated whenever a row changes.

Among collaboration vendors

1verified rows

Category median 1, across 95 indexed collaboration vendors. Mattermost has more verified rows than 42 percent of them.

integration platformsecure messagingteam communicationworkflow automation

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Compliance grid

EU-US Data Privacy FrameworkVerified
Active: EU-US Certification, SW-US Certification, UK Extension Certification
as of 26 Oct 2026
1 source

No public evidence yet for HIPAA, SOC 2, GDPR, FedRAMP, PCI DSS, ISO 27001, CSA STAR, Cyber Essentials, ISO 27701, ISO 42001. This does not mean the vendor lacks them; it means nothing public was found at the last check.