Duo security incident history
Hacking, data breaches and other security incidents involving Duo, with related coverage.
Incidents: 1 · Most recent
Malware on Duo Employee PC Leaks Data of 427,464 Members
427.5KImpact: Personal data of 427,464 full members
In January 2025, a Duo employee's work PC was infected with malware, leaking the personal data of 427,464 full members. The leaked data included resident registration numbers, education, religion, physical information, marital history and family relations. Duo was fined about 1.2 billion won for delays in reporting the leak and failing to notify victims, and police investigations and damages lawsuits by victims followed.
Related reports: 64 · last report →