Keys and secrets

• HSM or KMS for signing and data keys with rotation and rollover checks

• Separate key families for chain and webhook signing

Code and contracts

• Static and dynamic analysis with external audits and fuzz tests

• Emergency pause with root cause analysis and recovery plan

Network and access

• mTLS short lived tokens WAF and schema validation

• SSO and MFA with role based change controls

Observability

• Central SIEM with logs metrics and traces

• Real time alerts for auth failures signature errors latency and drops

• Signed change logs for high integrity releases