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Microsoft Azure CTO set Claude on his 1986 Apple II code, says it found vulns

ID: 7451cfc0-8cd0-5995-85d0-8e25dccafe33

STIX ID: report--7451cfc0-8cd0-5995-85d0-8e25dccafe33

Feed Name: The Register (Security)

Threat Score
25/100

Date Published: 2026-03-09

Date Updated: 2026-04-26

Author: Tim Anderson

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The article describes how Anthropic's Claude Opus 4.6 automatically decompiled 6502 Apple II machine code and found security issues in decades-old code, illustrating that modern AI can discover long-hidden vulnerabilities in legacy firmware; while this can help defenders, it also raises concern that attackers could use the same capability to rapidly find flaws across billions of embedded devices that are impractical to audit.

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