Record / data breach · United States · 2023-03-20

ChatGPT bug showed other users' chat titles and some payment details

data breachAI eraconfidence 95named

A server change OpenAI made on March 20, 2023 set off a bug in the redis-py client that could hand cached data to the wrong user. Some users saw titles from other people's chat histories. For 1.2% of ChatGPT Plus subscribers active in a nine-hour window, name, email, payment address, card type, last four card digits and expiry date may have been shown to another user. OpenAI took ChatGPT offline and patched the bug.

Organization
OpenAI · openai.com
Country · sector
United States · Artificial intelligence
Dates
occurred 2023-03-20 · disclosed 2023-03-24 · published 2026-09-26
Tags
llm-app, data-exposure, ai-era

Sources

Defenses for this class of incident

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A data breach sits in these classes of the AI-security landscape. The companies below work on that class of problem. This is a taxonomy, not a claim that any of them would have changed this incident.

HeimWall Operator
AI data governance
United States · est. 2025
AI data governance
Israel · est. 2021 · raised $2B
AI data governance
United States · est. 2016 · raised $1.13B
AI data governance
Israel · est. 2021 · raised $32M
AI data governance
Italy · est. 2020

Vendor data: AI Security Startups Map by Prompt Security (CC BY 4.0), synced daily. startups.prompt.security. Paid placements are labelled Sponsored; HeimWall, which runs this site, is labelled Operator. 453 companies in the directory.

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