Iyaku Joho Net: unauthorized access to Asahi Kasei Therapeutics' Pharma DIGITAL site for healthcare professionals
On 2 October, Asahi Kasei Therapeutics was told by Iyaku Joho Net, which runs its Pharma DIGITAL information site for healthcare professionals and manages its data, that the member database behind the site had been accessed in a cyberattack, and took the site offline. Names, workplaces and their addresses, job types and specialties of up to about 514,000 healthcare professionals (about 44,000 with emails and more), plus names, emails and photos of about 700 employees, may have been viewed or taken.
Disclosed
2026-10-06
Organizations involved
2
Leaked or at risk
514K
514,000
Downtime
Unknown
Timeline
- Disclosed 2026-10-06
- 1 days
Attack or cause
- Method
- [Intrusion]
- Impact
- [Data leak][Service outage]
- Entry point
- Supplier
Data exposed or at risk
Supply chain
- Organizations listed on this site
- 2
Services hit
Organizations involved
[Through a supplier][Critical]Tokyo, ChiyodaManufacturing514,000 leaked
Asahi Kasei Therapeutics Corporation[Breached][Critical]Tokyo, MinatoInformation and communications
Iyaku Joho Net Inc.
Sources
- [1][Official]医療従事者向け情報提供ウェブサイト「Pharma DIGITAL」への不正アクセスおよび個人情報漏えいの可能性についてAsahi Kasei Therapeutics · 2026-10-06