Impact & Downstream Threats
This breach carries high risk due to the nature of exposed data fields and the scale of affected records.
- Credential stuffing against reused passwords across other platforms
- Targeted phishing campaigns using exposed email addresses
Breach Intelligence
Executive Summary
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.
About League of Legends
Developer of online multiplayer games.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 148K records identified in breach intelligence sources.
- The data is indexed and searchable across breach notification platforms.
Recommended Actions
⚠️ Do not assume this is low sensitivity.
Non-clients may request a breach impact review.
Frequently Asked Questions
In June 2012, League of Legends experienced a data breach that exposed approximately 148K records containing personal information.
The exposed data includes fields such as email address, password, username.
Approximately 148K records were affected based on current breach intelligence.
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ObscureIQ Advisory
We combine proprietary dark web access with commercial and restricted breach intelligence to verify exposure and assess real-world risk.
- A public-facing individual
- A high-profile executive
- A customer of League of Legends
- Or concerned about credential reuse
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