TLDR Tech / InfoSec
Signal and Cloudflare Deploy Post-Quantum Cryptography to Preempt Quantum Threats
Signal and Cloudflare have completed a coordinated migration to post-quantum cryptographic algorithms, securing their encrypted communications against future quantum computing attacks that could break traditional public-key cryptography. This deployment disrupts the attacker kill chain at the cryptographic negotiation phase, eliminating reliance on RSA and ECC, which are vulnerable to Shor's algorithm on a sufficiently capable quantum computer. Defenders should prioritize inventorying cryptographic agility in their systems and planning for NIST-standardized post-quantum algorithms to mitigate Q-day risks before quantum decryption becomes feasible.
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