Dueling Network data breach: 6.5M accounts exposed
Severity: high · Patch status: no-fix-needed · Since 2020-03-30
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. Exposed data: email addresses, ip addresses, passwords, usernames. The breach dates from Mar 29, 2017; Have I Been Pwned loaded it on Mar 30, 2020.
What to do
- If you had a Dueling Network account, change its password and the password of any other account that reused it.
- Turn on multi-factor authentication wherever it is offered.
- Check whether your addresses are in this breach at https://haveibeenpwned.com.
- Expect targeted phishing that quotes the leaked details; verify any unexpected contact out of band.
Sources
All live incidents on Threat Watch