Security Notes

Analyses on product security.

Technical analyses, practical engineering insights and regulatory context for teams developing security-critical products.

Redlings’ own investigations and research findings are published under Research.

All Engineering Current Field Notes

Field Note Jul 9, 2026 5 min read

Field Note: “The Key Is in a Secure Element”. What We Check Next

The most common claim in hardware assessments is true in one narrow sense and silent about everything that matters. The four checks that follow it: debug surfaces, key policy, provisioning history, and what the key actually protects.

CryptographyDevice Identity