ChatGPT for Google Sheets Exfiltrates Workbooks

Summary

ChatGPT for Google Sheets is vulnerable to data exfiltration and phishing attacks that affect workbooks across a victim's account after an indirect prompt injection in a single sheet. This attack does not require human approval, even when set to require approval.

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ChatGPT for Google Sheets exfiltrates workbooks

6/1/2026, 4:01:30 PM

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