Aternos Data Breach

What happened

In December 2015, the service for creating and running free Minecraft servers known as Aternos suffered a data breach that impacted 1.4 million subscribers. The data included usernames, email and IP addresses and hashed passwords.

Exposed data

Recommended actions

• Change your Aternos 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 Aternos — attackers weaponise breach data quickly.
• Check whether your email address appears in this breach on haveibeenpwned.com.