A ransomware attack on printing vendor Toppan Next Tech (TNT) has led to the potential exposure of customer data from DBS Bank and Bank of China’s Singapore branch.
Bank of China confirmed that around 3,000 customers were affected by the incident, which involved paper letters printed and distributed by TNT. The data exposed included customer names, addresses, and, in some cases, loan account numbers.
DBS said it was notified by TNT that statements and letters for around 8,200 customers may have been compromised. The affected documents were sent to TNT in encrypted files, and it remains unclear whether the attacker was able to decrypt them.
DBS has suspended all printing jobs with TNT, increased monitoring of potentially affected accounts, and will begin contacting customers from 8 April via email or post to provide further information and support.