SHINDO2

Sawa Hospital

Hokuto-kai Social Medical Corporation

LossSize not disclosed

POSSIBLE LEAKFace or profile photoInvestigating

Open in the live monitor ▶
Disclosed
Apr 18, 2026
Leak
Leak possible
Type
Loss
Status
Investigating
Security spend
Not checked yet
Compensation
Not announced

What leaked

IdentityPatients' face photos

Not leaked

  • No names, medical records or other such personal data were on the card
  • No medical records were on the card

Who is affected

  • Patients

Cause

An SD card used for medication rounds went missing

Timeline

  1. Period when the card was used for medication rounds
  2. First report

Response

  • Change process
  • Staff training

Search continues; reviewing removable-media procedures and strengthening staff security training

What you should do

  1. Check the company's notice to see if you're affected

Lessons for companies

  1. Report to the PPC: preliminary in 3–5 days, final in 30 (60 if malicious)
  2. Run red teaming and AI-assisted hardening, and publish how much you invest

Sources