2016 — 3,200,000 debit cards (Indian banks)
Data compromised
Debit card data; 641 customers defrauded
Technical writeup
Oct 2016. Malware in Hitachi Payment Systems gateway network compromised 3.2M debit cards across 19 Indian banks. SBI, HDFC, ICICI, Axis, YES Bank worst hit. Fraud detected after cards used in China/US while holders in India. SBI blocked ~600k cards. 2.65M Visa/Mastercard + 600k RuPay. Root cause: malware in payment gateway.
Root cause
Malware in Hitachi Payment Systems payment gateway network.