Signal Messenger Introduces PQXDH Quantum-Resistant Encryption

Encrypted messaging app Signal has announced an update to the Signal Protocol to add support for quantum resistance by upgrading the Extended Triple Diffie-Hellman (X3DH) specification to Post-Quantum Extended Diffie-Hellman (PQXDH).
"With this upgrade, we are adding a layer of protection against the threat of a quantum computer being built in the future that is powerful enough to break current

app computer diffie encrypted encrypted messaging encryption future hellman messaging messaging app messenger post-quantum protection protocol quantum quantum computer quantum-resistant signal support threat update upgrade