Skip to content
JAENES
BPartial leak confirmedMarch 26, 2026 announced

白梅豊岡病院・白梅豊岡ケアホームData breach / unauthorized access incident

笹尾 祐太朗の写真Reviewed by Yutaro SasaoWritten by Leak Watch editorial team published ・ updated
Occurred on
March 1, 2026
Announced on
March 26, 2026
Severity
BIncidents centered on names and contact details.
Scale
Unknown
Main impact
They announced that internal hospital systems, including electronic medical records, were infected with ransomware and became inaccessible. The number of affected individuals is not listed in the published materials.
Information involved
Not specified in the disclosure
Cause / key point
Cause is under investigation.About Ransomware
Industry
Healthcare
Listing / capital
Non-profit corporation

Determined to be a private hospital.

Sources
Last updated
October 20, 2026
How severity is assessed →

Is this incident worth paying attention to?

Written & reviewed

笹尾 祐太朗の写真

Reviewed byYutaro SasaoFounder & CEO, MediaLeap Inc.

CEO of MediaLeap Inc. Working on both sides of web advertising and web media since 2013; founded the company in May 2025.

Review scope: cross-checking against primary sources (official and government announcements), verifying claims stay within the facts, and checking source attribution。Last reviewed:

Written by:Leak Watch editorial team (AI-assisted drafts verified against sources by the editorial team) · Reviewer profile · Request a correction

Related incidents

Browse the database →

Incidents sharing the same company, service, attack method or industry (grouped automatically from the disclosures).

Same attack method

Same industry

Attack method classification: Ransomware(Encrypting data and demanding a ransom)

Read the Ransomware guide and national trends →

← Back to Breach Watch