Securitize Japan Attack Leads to Data Leaks at Three Clients
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AI-assisted source synthesis · not an independent investigation.
On November 5, 2026, Cryptopolitan reported that Securitize Japan suffered a cyberattack, and Sony Bank, NTT Data, and Marui Group all confirmed customer data leaks. The investigations are ongoing. At Sony Bank, the names of 617 people and complete information for 4 customers were leaked, and digital securities trading services have been suspended. At Marui Group, some personal information of up to 9,086 people and bank account information for about 54 people were exposed. The report did not provide the specific scale of the customer data leak at NTT Data; further disclosures are pending as the investigation continues.
AI-written from reports · updated 17 minutes ago
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- CryptopolitanSecuritize Japan suffers cyberattack, exposing customer data from Sony Bank, NTT Data and Marui Group
Securitize Japan suffered a cyberattack, and Sony Bank, NTT Data and Marui Group confirmed customer data breaches. The investigation is ongoing. Sony Bank reported the exposure of the names of 617 people and the complete information of 4 customers, and has suspended its digital securities trading services. Marui Group reported the exposure of partial personal information of up to 9,086 people and bank account information of approximately 54 people.
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