Incidents on May 21, 2026

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Incidents on May 21, 2026
Date	Target	Summary	Classification	Source links
May 21, 2026 LEAK-119	Anabuki Housing Service	A 207,773 recordsRansomware damage was confirmed on February 3, 2026. Many files were taken from file servers, and the investigation fixed the number of personal data records that may have leaked at 207,773. The cause was a vulnerability in a group company's network device.	RansomwareConfirmedOfficial statement	anabuki-housing.co.jp