All Breaches
December 16, 2016 Verified Blockchain

Ethereum Data Breach

Ethereum data breach concerns a backup of the database belonging to the old forum infrastructure running on forum.ethereum.org, rather than the Ethereum network itself or users' wallets.

16.4 Thousand
Reported Records
6
Data Types
Medium
Severity
Yes
Verification

Exposed Data Types

6
Email addresses
IP addresses
Passwords
Private messages
Usernames
Website activity

Additional Information

Added DateDecember 20, 2016
Breach DateDecember 16, 2016
Domainethereum.org
SourceForum database backup breach
Last Content UpdateJuly 18, 2026

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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Company Information

Company NameEthereum Foundation
SectorBlockchain
CountrySwitzerland
Websiteethereum.org

Risk Level

Medium

The reported impact exceeds 10 thousand and falls within the medium severity band.

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