In 2023, Signal was the first mainstream messenger to enable post-quantum cryptography. We’re still ahead of the (elliptical) curve, implementing a new hybrid PQ ratchet ensuring Forward Secrecy & Post-Compromise Security even in a post-quantum world. https://signal.org/blog/spqr/
@signalapp > ML-KEM 768
https://blog.cr.yp.to/20231125-kyber.html this one, right?
@ljrk @signalapp [citation needed]