SHINDO4

Fukuda Lifetec Tokyo

Patients550people

LEAK CONFIRMEDHealth / medical / treatment / Full nameMisdelivery · Closed (final report)

Open in the live monitor ▶
Disclosed
Feb 19, 2026
Leak
Leak confirmed
Type
Misdelivery
Status
Closed (final report)
Security spend
Not checked yet
Compensation
Not announced

What leaked

IdentityName
Special-care dataMedical institution attended and model of device used

How many

  • Patients 550 people

Who is affected

  • Patients using the company's medical devices

Cause

Delivery notes meant for individual partners were sent to several at once

Timeline

  1. Delivery note PDF sent to several partners at once
  2. First disclosure

Response

  • Data deleted
  • Notified individuals

Asked the 10 partners whose copies could not be recalled to delete them and confirmed deletion; notified patients and medical institutions individually

What you should do

  1. Health data can't be taken back. Don't answer blackmail; call the police (#9110) or the consumer hotline (188)
  2. Check the company's notice to see if you're affected

Lessons for companies

  1. Use DLP: recipient checks, send delay, automatic attachment protection
  2. Report to the PPC: preliminary in 3–5 days, final in 30 (60 if malicious)
  3. Run red teaming and AI-assisted hardening, and publish how much you invest

Sources