Data breaches by year
Which data breaches happened in 2011?
These are the public data breaches that happened in 2011 and reached monitored breach databases, newest first, with what each exposed. Open one to see what it means for you and the steps to take.
01
Which breaches are on this list?
| Breach | Happened | Accounts | Exposed |
|---|---|---|---|
| Tianya | December 2011 | 29,020,808 | email addresses, names and usernames |
| RuneScape Boards | December 2011 | 222,762 | passwords, email addresses, IP addresses (where you connected from) and usernames |
| Stratfor | December 2011 | 859,777 | passwords, credit cards, home addresses, phone numbers and email addresses |
| China Software Developer Network | December 2011 | 6,414,990 | passwords, email addresses and usernames |
| Android Forums | October 2011 | 745,355 | passwords, dates of birth, email addresses, homepage URLs and instant messenger identities |
| Battlefield Heroes | June 2011 | 530,270 | passwords and usernames |
| hackforums.net | June 2011 | 191,540 | passwords, dates of birth, email addresses, instant messenger identities and IP addresses (where you connected from) |
| Sony | June 2011 | 37,103 | passwords, dates of birth, home addresses, phone numbers and email addresses |
| QIP | June 2011 | 26,183,992 | passwords, email addresses, usernames and website activity |
| Dangdang | June 2011 | 4,848,734 | email addresses |
03
Is my address in a breach?
Enter your email address. We check that one address against monitored breach databases and show which breaches list it and what each exposed.
No account needed. We keep the address you check, when, and how many breach records it was found in, to prevent abuse, until you ask us to delete it. Privacy