Adpost
Disclosed Oct 7, 20253,339,512 accountsConfirmed
In February 2025, data obtained from an earlier Adpost breach surfaced. The dataset contained 3.3M records including email addresses, usernames, and display names. Adpost later published a disclosure notice and advised they'd forced a credential refresh, among other actions.
What is known
| People affected | 3,339,512 (accounts in the leaked data, per Have I Been Pwned) |
|---|---|
| Disclosed | Oct 7, 2025 |
| Happened | Feb 14, 2025 |
| Attack | Not stated |
| Data exposed | EmailsNames |
| Sector | Tech |
| Status | Confirmed |
| Check your email | Have I Been Pwned |
Sources
Notices filed
History of this record
First recordedby backfillSource
First seen 2026-09-25 (Have I Been Pwned), confirmed by Company page. Record counts are as reported. Not legal advice.