Privacy Unpacked

Reported breach

UK Biobank data breach

GBUnited Kingdom

The Register reported a data breach at UK Biobank (United Kingdom) on 26 October 2026. It affected 500,000 people.

If UK Biobank had your data

  1. Look for UK Biobank’s own notice or letter: it should say what of yours was involved. Keep it.
  2. Nobody has said yet what was exposed. If UK Biobank has a password of yours, change it now to be safe.
  3. Expect scams that use your details: calls, texts or emails pretending to be UK Biobank, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

One email to confirm first. We use your address only for this alert, and one click deletes it.

More breaches in United Kingdom

  1. Welsh organizationsreportedGBUnited Kingdom · 27 October 2026 Sensitive information 3.3Kpeople
  2. PwCGBUnited Kingdom · 26 October 2026 Employee learning recordsHR dataInternal files –not reported
  3. Ogi Networks and Data CymruGBUnited Kingdom · 20 October 2026 Personal informationPersonal data 3.3Kpeople
  4. Legal Aid AgencyreportedGBUnited Kingdom · 15 October 2026 Legal records –not reported
  5. Isle of Wight CouncilreportedGBUnited Kingdom · 15 October 2026 Children's details –not reported

Every breach in United Kingdom →

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Found a mistake? Tell us and we correct it.