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AI-Discovered Cybersecurity Flaw Puts Large Share of Websites at Risk

Between October 21 and 24, 2026, coverage reported that an AI system found a security vulnerability affecting a large share of the world's websites, prompting a coalition led by OpenAI to work on fixes and drawing attention to the risk of attackers using AI to exploit it.

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Oct 20first seen

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Coverage over time

Oct 20 5 PM: 1 articleOct 21 5 PM: 1 articleOct 22 5 PM: 1 articleOct 23 5 PM: 1 articleOct 20 5 PMOct 24 6 AMpeak 1 per day

Articles

Oct 24, 6:01 AM businessinsider.com Inside the cyber flaw scramble that brought the AI threat to life
Oct 23, 2:44 PM forbes.com The New Norm: AI Discovers Disastrous Security Hole In 70% Of The World’s Websites
Oct 21, 5:01 PM theinformation.com The Closing of the ‘Defenders Window’ Is Nigh
Oct 20, 5:00 PM openai.com Democratic governance of frontier AI, part II: Empowering cyber defenders