Every public data breach

44 disclosed this week · 26,355 on record

Aternos

Disclosed Oct 1, 20161,436,486 accountsUnverified

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.

What is known

People affected1,436,486 (accounts in the leaked data, per Have I Been Pwned)
DisclosedOct 1, 2016
HappenedDec 6, 2015
AttackNot stated
Data exposedEmailsIP addressesPasswords
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.

Everything about Aternos