MC2 Data
Disclosed Dec 15, 20241 year ago2,122,280 accountsUnverified
In August 2024, data aggregator MC2 Data left a database publicly accessible without a password which was subsequently discovered by a security researcher . The breach exposed the personal information of 2.1M subscribers to the service which was marketed under a series of different brand names . The data included email addresses, names and salted SHA-256 password hashes.
What is known
| People affected | 2,122,280 (accounts in the leaked data, per Have I Been Pwned) |
|---|---|
| Disclosed | Dec 15, 2024 |
| Happened | Aug 18, 2024 |
| Attack | Exposed data |
| Data exposed | Emails, Names, Passwords |
| 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: MC2 Datahaveibeenpwned.com · Aggregator | Aggregator |
Notices filed
| Where | Filed | People |
|---|---|---|
| Have I Been Pwnedaccounts in the data | Dec 15, 2024 | 2,122,280 |
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.