Signaling System 7 (SS7) was designed in the 1970s to let telecom carriers route calls, deliver SMS, and enable roaming. It was never built with authentication or encryption in mind. Security wasn’t part of the plan. The assumption was simple: All carriers are trusted. The post Librem PQC Encryptor: Future‑Proofing Against Both SS7 and Quantum appeared first on Purism.
