Breachesby GlyphDueling Network
Disclosed Mar 30, 20206,486,626 accountsUnverified
In March 2017, the Flash game based on the Yu-Gi-Oh trading card game Dueling Network suffered a data breach . The site itself was taken offline in 2016 due to a cease-and-desist order but the forum remained online for another year. The data breach exposed usernames, IP and email addresses and passwords stored as MD5 hashes.
What is known
| People affected | 6,486,626 (accounts in the leaked data, per Have I Been Pwned) |
|---|---|
| Disclosed | Mar 30, 2020 |
| Happened | Mar 29, 2017 |
| Attack | Not stated |
| Data exposed | EmailsIP addressesPasswords |
| Sector | Tech |
| Status | Unverified: not yet confirmed by an official notice, a filing or the organization |
| Check your email | Have I Been Pwned |
Sources
Notices filed
History of this record
First recordedby backfillSource
First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.