Twilio resource identifier: the AC account SID and the SK API key SID, each followed by thirty-two hex characters. The account SID is half of the basic-auth pair and travels with the auth token in practice. That auth token is itself a bare thirty-two character hex string with no prefix and is deliberately not matched: on shape alone nothing tells it from a digest. A prefixed hex digest of the same shape would match, which is rare. No collision.
Label: TWILIO_SID
\b(?:AC|SK)[0-9a-fA-F]{32}\bTWILIO_ACCOUNT_SID=AC0123456789abcdef0123456789abcdef → AC0123456789abcdef0123456789abcdefLa cle d'API SKdeadbeefdeadbeefdeadbeefdeadbeef est encore active. → SKdeadbeefdeadbeefdeadbeefdeadbeefAC0123456789ACzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzTags: international, secrets, software-dev