League of Legends Data Breach

What happened

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.

Exposed data

Recommended actions

• Change your League of Legends password immediately, and update it anywhere you reused the same password.
• Enable two-factor authentication on the affected account and on your critical services (email, banking).
• Watch for targeted phishing emails referencing League of Legends — attackers weaponise breach data quickly.
• Check whether your email address appears in this breach on haveibeenpwned.com.