MediumBreachHave I Been Pwned — public breach catalog· 16 Sept 2025

Miljödata — 870K accounts

Severity: Medium · Kind: Data breach

Plain-English summary on the way

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From the source

In August 2025, the Swedish system supplier Miljödata was the victim of a ransomware attack . Following the attack, data was subsequently published on the dark web and included 870k unique email addresses across various compromised files. Data also included names, phone numbers, physical addresses, dates of birth and government-issued personal identity numbers.

Breach facts

Accounts affected
870,108
Verified
Yes
Sensitive
No
Domain
miljodata.se
Data exposed
Dates of birthEmail addressesGendersGovernment issued IDsNamesPhone numbersPhysical addresses

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Plain-English summaries are AI-generated and reviewed for tone, not technical accuracy. For incident response, always rely on the original source linked above.