Yahoo!
Disclosed Jul 12, 201214 years ago453,427 affectedUnverified
SQL injection on Yahoo Voices leaks about 450,000 plaintext passwords
Yahoo confirmed it was investigating a breach that exposed about 450,000 user IDs and plain text passwords taken from servers tied to its Yahoo Voices publishing service.
What is known
| People affected | 453,427 (as reported by the organization) |
|---|---|
| Disclosed | Jul 12, 2012 |
| Happened | Jul 11, 2012 |
| Attack | Hacking |
| Data exposed | Emails, Passwords |
| Sector | Tech · US |
| 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: Yahoohaveibeenpwned.com · Aggregator | Aggregator |
| Yahoo investigating exposure of 400,000 passwordsbbc.co.uk · News | News |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | Jul 12, 2012 | 453,427 |
| Have I Been Pwnedaccounts in the data | Dec 4, 2013 | 453,427 |
Other breaches at Yahoo!
| Breach | Affected | ||||
|---|---|---|---|---|---|
| 2014 Yahoo breach hit 515,000 UK accounts; ICO fine of GBP 250,000Sep 22, 201610 years agoHacking | Sep 22, 201610 years ago | Hacking | Tech | Settled | 515K |
History of this record
- 2026-09-25 · source_type: aggregator to press · seed source
- 2026-09-25 · source_url: https://haveibeenpwned.com/Breach/Yahoo to https://www.bbc.co.uk/news/technology-18811300 · seed source
- 2026-09-25 · attack: unknown to hacking · seed source
- 2026-09-25 · records_basis: hibp to organization · seed source
- 2026-09-25 · disclosed: 2013-12-04 to 2012-07-12 · seed source
- 2026-09-25 · summary: In July 2012, Yahoo! had their online publishing service "Voices" compromised via a SQL injection attack. The breach resulted in the disclosure of nearly half a million usernames and passwords stored in plain text. The breach showed that of to Yahoo confirmed it was investigating a breach that exposed about 450,000 user IDs and plain text passwords taken from servers tied to its Yahoo Voices publishing service. · seed source
- 2026-09-25 · title: empty to SQL injection on Yahoo Voices leaks about 450,000 plaintext passwords · seed source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.