image of a barrel formed by criss-crossing green strands, each representing the path taken by a string of amino acids.
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October 4, 2025October 4, 2025TECHNOLOGY

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

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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...

Cisco Systems headquarters in San Jose, California, US, on Monday, Aug. 14, 2023.
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September 25, 2025September 25, 2025TECHNOLOGY

As many as 2 million Cisco devices affected by actively exploited 0-day

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As many as 2 million Cisco devices are susceptible to an actively exploited zero-day that can remotely crash or execute code on vulnerable systems. Cisco said Wednesday that the vulnerability, tracked as CVE-2025-20352, was present in all supported versions of Cisco IOS and Cisco IOS XE, the operating system that powers a wide variety of...