Every public data breach

47 disclosed this week · 26,367 on record

League of Legends

Disclosed Jul 28, 2018339,487 accountsUnverified

In June 2012, the multiplayer online game League of Legends suffered a data breach . At the time, the service had more than 32 million registered accounts and the breach affected various personal data attributes including "encrypted" passwords. In 2018, a 339k record subset of the data emerged with email addresses, usernames and plain text passwords, likely cracked from the original cryptographically protected ones.

What is known

People affected339,487 (accounts in the leaked data, per Have I Been Pwned)
DisclosedJul 28, 2018
HappenedJun 11, 2012
AttackNot stated
Data exposedEmailsPasswords
SectorTech
StatusUnverified: not yet confirmed by an official notice, a filing or the organization
Check your emailHave I Been Pwned

Sources

Notices filed

History of this record
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.

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