Every API call, signed and verified.
APIs are where modern breaches happen — broken authorization, leaked keys, replayed requests. B5 Secure puts every call through one Never Trust pipeline so a request that isn’t authentic, authorized, and intact never executes.
The challenge
The OWASP API risks that actually cause incidents aren’t exotic — they’re broken object- and function-level authorization, unauthenticated endpoints, leaked keys used from anywhere, and replayed or tampered requests. Most stacks bolt authentication onto the edge and trust everything behind it.
The Never Trust answer
Zero assumed trust: every request — browser, mobile, service, or job — earns its access through the full series of checks. No internal-only exemptions, no undocumented switches. Absence of evidence means absence of access.
Four controls, one pipeline
Request integrity & replay defense
A keyed signature over the canonical request — method, URL, body, timestamp, nonce — via RFC 9421 HTTP Message Signatures / HMAC. A captured request can’t be resent and any tampering invalidates the signature.
Authorization down to the record
Authorize not just the action but the specific data it touches, down to fields. Conventions derive permission codes and flag sensitive fields automatically, so authorization can’t drift from the code.
Scoped, leak-resistant keys
Service keys grant an integration only the endpoints it needs. Key-leakage protection stops a key used from a browser or a non-allow-listed IP — a leaked key becomes a closed door.
Limit what comes back
APIs tend to return whole records; clients need a fraction. Default to summary responses and require explicit privilege to widen them — the single most effective brake on record-scraping.
Hold your API to the vault standard.
The same pipeline behind $15B+ in custody is ready for your endpoints. See it on your stack.