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

ID: f24e453a-1fbd-582a-8fd7-094ddf77fcb8

STIX ID: report--f24e453a-1fbd-582a-8fd7-094ddf77fcb8

Feed Name: Ars Technica Security (tag)

Date Published: 2025-10-03

Date Updated: 2026-04-19

Author: John Timmer

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A Microsoft-led research team reports a "biological zero-day" in DNA order screening systems, which could miss AI-designed protein toxins. The article explains how current biosurveillance screens DNA orders against known pathogen and toxin sequences and has evolved from exact sequence matching to protein-level recognition. However, the rise of AI-generated proteins may evade these safeguards, raising concerns that dangerous sequences could be synthesized without detection.

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