Daily brief · 2026-10-05
New incidents (4), most serious first
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Shinhan Bank data breach with suspected AI-assisted intrusion
Shinhan Bank said customer information was leaked after hackers gained access to its systems; the leaked information reportedly includes customers' names, phone numbers, loan borrowing details and annual income.
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Airline chatbot fabricated bereavement refund policy
A news segment says an airline chatbot told a customer he qualified for a bereavement refund under a policy that did not exist, and that a tribunal later ruled the airline was responsible for what its AI said.
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Claude Code agent deletes 48,218 Windows project files and damages Git object store
A Claude Code agent rebuilding a mirror deleted 48,218 live Windows project files and damaged the repository’s Git object store in 103 seconds; a user-provided verifier report says the deletion script mishandled 614 Windows directory junctions and traversed into the live project tree.
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Indirect prompt injection of AI email summarizer via forged header blocks in plain view
In researchers' tests of indirect prompt injection, an AI email summarizer showed fabricated meeting dates and invoice totals in its summaries in all 10 trials of each of six crafted emails, including a payload with nothing hidden from the user and no instruction to the summarizer.