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Claude Mythos – Facing the Coming Bug-Calypse

ID: 14819611-ef40-52b1-ada8-85cef316336c

STIX ID: report--14819611-ef40-52b1-ada8-85cef316336c

Feed Name: Blog – Hornetsecurity – Next-Gen Microsoft 365 Security

Threat Score
72/100

Date Published: 2026-06-10

Date Updated: 2026-07-25

Author: Paul Schnackenburg

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This report examines Anthropic’s Claude Mythos and associated industry programs (Project Glasswing, MDASH), showing that frontier LLMs and multi-agent scanning harnesses significantly increase the speed and scale of vulnerability discovery and exploit generation; it summarizes large finding counts, testing results, implications for defenders and recommended mitigation steps (faster patching, CTEM, supply-chain focus, resilience) while warning that attackers will leverage similar services.

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