Your Security Vendors Are Your Highest-Privilege Third Parties, and Your TPRM Program Scores Them Low

This analysis warns that security vendors represent uniquely high third‑party risk and illustrates the point with two 2026 incidents: a source‑code repository breach that exposed detection logic and a CI/release pipeline compromise that force‑pushed malicious commits across nearly all version tags, published backdoored artifacts, and exfiltrated SSH keys, cloud credentials and tokens; the report recommends creating a privilege‑centric inventory, demanding specific supply‑chain controls from vendors, and deploying monitoring for vendor infrastructure and credentials.