AI chatbots are serving up fake support numbers to millions of users
Researchers have uncovered a widespread campaign that manipulates ChatGPT, Gemini, and Google AI Overview into citing fraudulent contact information for 374 major brands — and neither Google nor OpenAI consider it a reportable vulnerability.
Security firm Vigilance has documented an active, large-scale disinformation campaign that exploits how generative AI models source and cite information, tricking ChatGPT, Google Gemini, and Google’s AI Overview into surfacing fake phone numbers, email addresses, and login pages as legitimate brand contact information.
The affected organisations span Fortune 100 companies, major airlines (Delta, Lufthansa, United, Emirates, Qatar Airways), top-tier banks (Bank of America, Wells Fargo, Chase, Citi), and travel platforms (Airbnb, TripAdvisor) — 374 companies in total, according to the researchers’ findings.
The Technique: Generative Engine Optimization, Weaponized
The attack repurposes Generative Engine Optimization (GEO) — a legitimate discipline marketers use to get AI models to cite their content — for fraud. Researchers built a detection...
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