AI is getting scary good at finding hidden software bugs - even in decades-old code
- 3 hours ago
- 1 min read

Microsoft Azure CTO Mark Russinovich said he used Anthropic's new AI model Claude Opus 4.6 to read and analyze assembly code he'd written in 1986 for the Apple II 6502 processor.
Claude didn't just explain the code; it performed what he called a "security audit," surfacing subtle logic errors, including one case where a routine failed to check the carry flag after an arithmetic operation.
That's a classic bug that had been hiding, dormant, for decades.
Read the full story | ZD NET


