> JapanHacked_
[Ongoing][Severity: Critical][Intrusion]

Maruki Medical Systems: cyberattack stops orders and shipping

On 15 October, Maruki Medical Systems, a medical equipment wholesaler in Sendai, said its servers came under cyberattack from about 10:00 that day and its core ordering, purchasing and inventory system was completely down. It stopped taking orders and shipping, and takes orders by fax at each branch. Its follow-up on 26 October confirmed unauthorized access from outside and said whether data leaked is under investigation. It has filed a preliminary report with the Personal Information Protection Commission and consulted the police. It has been unable to read contact form messages since 15 October.

Disclosed

2026-10-15

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

Timeline

  1. Started, Detected, Disclosed 2026-10-15
  2. 1 days

Attack or cause

Method
[Intrusion]
Impact
[Service outage]
Entry point
Unknown

Data exposed or at risk

–

Organizations involved

Open in organization search

Sources

  1. [1][Official]【重要】弊社システム障害に伴う、受注・出荷の停止に関するお詫びとご案内Maruki Medical Systems · 2026-10-15
  2. [2][Official]【続報】弊社システム障害に関するお詫びとご案内Maruki Medical Systems · 2026-10-26