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Docker Hardened Images (DHI) underwent independent security validation by SRLabs, a leading cybersecurity research group. The grey box assessment found no critical or high-severity vulnerabilities, validating DHI's SLSA Build Level 3 provenance, Cosign signatures, 7-day patch SLA, and minimal attack surface through non-root defaults. SRLabs identified medium-risk areas for improvement including HSM-based key management and keyless signing flows, which Docker is already addressing. A deeper white box assessment is underway to further stress-test the security architecture.

Docker Hardened Images: Security Independently Validated by SRLabs