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[Investigating][Severity: Major][Intrusion]

Rohto Pharmaceutical: unauthorized access to its mail order systems

On 10 September, Rohto Pharmaceutical found possible unauthorized access to systems used for its mail order business and disclosed it on 11 September. Its update on 15 September said recorded customer calls and related data stored in the mail order customer service system may have been taken, and data may also have been taken from its customer management system. The scope and numbers are under investigation, and no impact on its main business was found.

Disclosed

2026-09-11

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

Timeline

  1. Detected 2026-09-10
  2. Disclosed 2026-09-11
  3. 1 days

Attack or cause

Method
[Intrusion]
Impact
[Data leak]
Entry point
Unknown

Data exposed or at risk

–

Organizations involved

Open in organization search

Sources

  1. [1][Official]当社システムにおける不正アクセスに関する調査状況についてRohto Pharmaceutical · 2026-09-15
  2. [2][News]ロート製薬、通販システムに第三者による不正アクセスの可能性があるとして調査実施INTERNET Watch · 2026-09-24