Securitize Japan: digital securities platform intrusion
Intruders reached the Securitize PF digital securities platform; names and holdings of investors in a Starts real estate security token may have leaked.
Disclosed
2026-10-31
Organizations involved
2
Leaked or at risk
Unknown
Downtime
Unknown
What happened
Securitize detected unauthorized access to its system and restricted access; its investigation then found that the intruder had taken some customer data. [1]
Starts Securities disclosed the incident after being informed by Securitize. [1]
Impact
Names and holdings of investors in the real estate security token handled by Starts Securities may have leaked. No access to addresses, phone numbers, email addresses or passwords has been found. Neither the number of people nor the effect on other platform users has been published; Securitize is investigating. [1]
Timeline
- Detected 2026-10-29
- Disclosed 2026-10-31
- 2 days
Attack or cause
- Method
- [Intrusion]
- Impact
- [Data leak]
- Entry point
- Unknown
Data exposed or at risk
Supply chain
- Organizations listed on this site
- 2
Services hit
Organizations involved
[Breached][Major]Tokyo, ChuoInformation and communications
Securitize Japan K.K.Provides Securitize PF, a platform for issuing and managing digital securities.
[Through a supplier][Major]Tokyo, EdogawaFinance and insurance
Starts Securities Co., Ltd.Names and holdings of investors in the Starts Asset Token (Ryogoku and Chidoricho); no access to addresses, contact details or passwords was found.
Sources
- [1][Official]不正アクセスによる個人情報流出の可能性に関するお知らせStarts Securities · 2026-10-31