TBPN 20261013 XBOW Built a Chrome Full-Chain Exploit Affecting a Billion Users in Six Days Summary
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TBPN’s October 13 episode surfaced Oege de Moor’s account of an unusually concrete milestone in AI-assisted offensive security: XBOW says researchers working with agents built a new Chrome exploit chain in six days. The company published both a high-level announcement, “XBOW Built a Chrome Full-Chain Exploit Affecting a Billion Users in Six Days,” and a detailed technical reconstruction. Google accepted the chain into its vulnerability reward program, confirmed that it launched Calculator outside Chrome’s renderer sandbox, and paid the first \$250,000 full-chain reward under rules introduced in April 2026.
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