A biological 0-day? Threat-screening tools may miss AI-designed proteins.

On Thursday, a team of researchers led by Microsoft announced that they had discovered, and possibly patched, what they’re terming a biological zero-day—an unrecognized security hole in a system that protects us from biological threats. The system at risk screens purchases of DNA sequences to determine when someone’s ordering DNA that encodes a toxin or dangerous virus. But, the researchers argue, it has become increasingly vulnerable to…