THERE'S A NEW WAY TO BREAK RSA THAT'S FASTER THAN ANYTHING WE'VE SEEN BEFORE

Summary from the TLDR newsletter

Researchers have discovered a novel method that uses classical computing to reduce the current RSA security level to an unacceptably low threshold. The practical risk is limited, but still significant. Widely used RSA implementations are also safe. The technology involves signature forgery and reduces the required computing resources by orders of magnitude.