The 72-Hour Rule: When and How to Notify the ICO
Fail to notify the ICO of a notifiable breach within 72 hours, and your risk of fines increases. Here’s what to know.
When a personal data breach occurs and is likely to result in a hig risk to individuals, you must notify the Information Commissioner’s Office (ICO) within 72 hours of becoming aware.
Your report must include:
- Nature of the breach
- Categories and volume of affected data
- Consequences of the breach
- Measures taken or proposed
Delays must be justified. Keep internal documentation even if the breach isn’t reported.
Tip: Set up an internal breach notification process so that teams act quickly.
