Is Mattermost Safe?
Mattermost — Nerq Trust Score 48.2/100 (D grade). Based on analysis of 2 trust dimensions, it is has notable safety concerns. Last updated: 2026-05-27.
Exercise caution with Mattermost. Mattermost is a SaaS platform with a Nerq Trust Score of 48.2/100 (D), based on 3 independent data dimensions. Below the recommended threshold of 70. Security: 90/100. Popularity: 0/100. Data sourced from company registration, SOC 2/ISO 27001 certifications, privacy policy analysis, and app store metadata. Last updated: 2026-04-12. Machine-readable data (JSON).
Is Mattermost safe?
NO — USE WITH CAUTION — Mattermost has a Nerq Trust Score of 48.2/100 (D). It has below-average trust signals with significant gaps in security, maintenance, or documentation. Not recommended for production use without thorough manual review and additional security measures.
What is Mattermost's trust score?
Mattermost has a Nerq Trust Score of 48.2/100, earning a D grade. This score is based on 2 independently measured dimensions including security, maintenance, and community adoption.
What are the key security findings for Mattermost?
Mattermost's strongest signal is security at 90/100. No known vulnerabilities have been detected. It has not yet reached the Nerq Verified threshold of 70+.
What is Mattermost and who maintains it?
| Author | Unknown |
| Category | SaaS |
| Source | N/A |
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Safety Guide: Mattermost
What is Mattermost?
Mattermost is a SaaS platform — Open-source, self-hosted messaging platform for teams. Enterprise and community editions..
How to Verify Safety
Check SOC 2 compliance. Review data handling and incident history.
You can also check the trust score via API: GET /v1/preflight?target=Mattermost
Key Safety Concerns for SaaS platform
When evaluating any SaaS platform, watch for: data security, compliance certifications, incident history.
Trust Assessment
Mattermost has a Nerq Trust Score of 48/100 (D) and has not yet reached Nerq trust threshold (70+). This score is based on automated analysis of security, maintenance, community, and quality signals.
Key Takeaways
- Mattermost has a Trust Score of 48/100 (D).
- Review carefully before use — below trust threshold.
- Always verify independently using the Nerq API.
Detailed Score Analysis
| Dimension | Score |
|---|---|
| Security | 90/100 |
| Maintenance | 50/100 |
| Popularity | 0/100 |
| Quality | 40/100 |
| Community | 35/100 |
Based on 5 dimensions. Data from company registration, SOC 2/ISO 27001 certifications, privacy policy analysis, and app store metadata.
What data does Mattermost collect?
Mattermost is a SaaS platform. Open-source, self-hosted messaging platform for teams. Enterprise and community editions.
Privacy score: 51/100. As a SaaS platform, Mattermost processes user data in the cloud. Review the privacy policy for details on data retention, third-party sharing, and data processing locations.
For business use, request a Data Processing Agreement (DPA) and verify GDPR compliance before uploading sensitive data.
Full analysis: Mattermost Privacy Report · Privacy review
Is Mattermost secure?
Security score: 90/100. Open-source, self-hosted messaging platform for teams. Enterprise and community editions.
Check Mattermost's security page for certifications such as SOC 2 Type II, ISO 27001, or GDPR compliance documentation. These certifications indicate that the vendor follows established security practices and undergoes regular audits.
For enterprise deployments, verify SSO/SAML support, role-based access control, and audit logging capabilities.
Full analysis: Mattermost Security Report
How we calculated this score
Mattermost's trust score of 48.2/100 (D) is computed from company registration, SOC 2/ISO 27001 certifications, privacy policy analysis, and app store metadata. The score reflects 5 independent dimensions: security (90/100), maintenance (50/100), popularity (0/100), quality (40/100), community (35/100). Each dimension is weighted equally to produce the composite trust score.
Nerq analyzes over 7.5 million entities across 26 registries using the same methodology, enabling direct cross-entity comparison. Scores are updated continuously as new data becomes available.
This page was last reviewed on May 27, 2026. Data version: 1.0.
Full methodology documentation · Machine-readable data (JSON API)
Frequently Asked Questions
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Disclaimer: Nerq trust scores are automated assessments based on publicly available signals. They are not endorsements or guarantees. Always conduct your own due diligence.