AI incident
ChatGPT leaked other users’ data via a cache bug
OpenAI · 2023
Organisation
OpenAI
Year
2023
Failure mode
Data leakage
Severity
major
Source
OpenAI postmortem, 2023
What happened
A Redis bug briefly exposed other users’ chat titles and partial payment data.
What would have prevented it
Data isolation + DPIA + incident response
Requirements this maps to
Editorial cross-reference from our prevention note — it is not a finding that any law was breached.