A breach of Miljödata (Sweden) was added to Have I Been Pwned’s breach database on 16 September 2025. It affected 870,108 accounts. Exposed: Government ID numbers, Email addresses, Phone numbers, Dates of birth, Names and Addresses and more. The breach began on 25 August 2025, 22 days before it was reported.
Status
Confirmed breach
People affected
870,108 accounts
Reported
16 September 2025
Breach began
25 August 2025
Time to tell
22 days (the median in California’s notices over the last year: 154 days)
Look for Miljödata’s own notice or letter: it should say what of yours was involved. Keep it.
An ID number cannot be changed, so lock it: a credit freeze or fraud alert in the US, a credit warning (kreditadvarsel) on borger.dk in Denmark, Cifas protective registration in the UK.
Expect scams that use your details: calls, texts or emails pretending to be Miljödata, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.
Privacy Unpacked