Flashback
Disclosed Feb 12, 201511 years ago40,256 accountsUnverified
In February 2015, the Swedish forum known as Flashback had sensitive internal data on 40k members published via the tabloid newspaper Aftonbladet . The data was allegedly sold to them via Researchgruppen (The Research Group) who have a history of exposing otherwise anonymous users , primarily those who they believe participate in "troll like" behaviour. The compromised data includes social security numbers, home and email addresses.
What is known
| People affected | 40,256 (accounts in the leaked data, per Have I Been Pwned) |
|---|---|
| Disclosed | Feb 12, 2015 |
| Happened | Feb 11, 2015 |
| Attack | Not stated |
| Data exposed | Emails, Government IDs, Addresses |
| Sector | Tech |
| Status | Unverified: not yet confirmed by an official notice, a filing or the organization |
| Check your email | Have I Been Pwned |
Sources
| Source | |
|---|---|
| Have I Been Pwned: Flashbackhaveibeenpwned.com · Aggregator | Aggregator |
Notices filed
| Where | Filed | People |
|---|---|---|
| Have I Been Pwnedaccounts in the data | Feb 12, 2015 | 40,256 |
History of this record
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.