Miljödata Data Breach and Leak (August 2025)
miljodata.se
About This Breach
Miljödata, a Swedish system supplier, suffered a ransomware attack in August 2025 that led to stolen data being published on the dark web. The breach exposed 870k unique email addresses across multiple compromised files, along with names, phone numbers, physical addresses, dates of birth, and government-issued personal identity numbers.
Data Exposed
Breach Details
| Breach Type | Data Breach |
| Searchable | Yes |
| Verified | Yes |
| Sensitive Data | No |
| Reference | No reference available |
Frequently Asked Questions
How do I check if I was in the Miljödata breach?
Type your email address into the search box on our data breach check page. If it appears in the Miljödata breach, or any other, you'll see the breach name, date and what was exposed. It's free and nothing you type is stored.
When did the Miljödata data breach happen?
Miljödata was breached in Aug 2025. The breach was added to the XposedOrNot index on October 15, 2025.
How many records were exposed in the Miljödata breach?
868,925 records were exposed, making it the #437 largest of the 796 breaches in our index.
What data was exposed in the Miljödata breach?
The exposed data includes: Email addresses, Names, Phone numbers, Dates of birth, Genders, Government issued IDs, Physical addresses.
What should I do if I was affected by the Miljödata breach?
No password was in this breach, so the main risk is phishing. Be wary of emails, calls or texts that quote these details, turn on two-factor authentication, and set up free breach alerts on XposedOrNot so you know the moment your email appears in a new breach.
More Environment Breaches
What Should You Do?
Enable Two-Factor Authentication
Add 2FA on all supported accounts using an authenticator app like Google Authenticator or Authy.
Place a Fraud Alert
Contact credit bureaus to place a fraud alert or credit freeze to prevent identity theft.
Watch for Phishing Calls & SMS
Be cautious of unexpected calls or texts asking for personal information.
Beware of Scam Mail
Be skeptical of unexpected correspondence requesting personal details.
Monitor Your Accounts
Set up login alerts and review account activity regularly for suspicious access.