rotative
mit tech review · May 14, 2026

Google Gemini exposes private phone numbers

google's gemini chatbot is revealing real private phone numbers to users due to pii in training data.

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google's gemini chatbot is actively exposing private phone numbers, directing strangers to contact individuals such as software developers and university researchers. this failure occurs because personally identifiable information remains in the model's training data, allowing the chatbot to retrieve and broadcast contact details that are not effectively scrubbed. victims report receiving unsolicited whatsapp messages and calls, highlighting that current privacy safeguards are insufficient to prevent large language models from leaking sensitive personal information.

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