A quantum computer with a million qubits would be able to crack the vital RSA encryption algorithm, and while such machines don't yet exist, that estimate could still fall further ...

Security researchers have successfully broken one of the most secure encryption algorithms, 4096-bit RSA, by listening -- yes, with a microphone -- to a computer as it decrypts some encrypted data.

A new study suggests that breaking RSA encryption with quantum computers may require 20 times fewer resources than previously thought. Although Bitcoin uses elliptic curve cryptography, it remains ...