Bankbsi.co.id

Bank Syariah Indonesia BSI experienced a massive ransomware attack involving the LockBit 3.0 group in May 2023. The breach resulted in the compromise of approximately 1.5 terabytes of internal data. The leaked information includes sensitive customer records such as personal details and financial credentials. The incident disrupted the banks digital services for several days and culminated in the public release of the stolen data on the dark web after ransom negotiations failed. The scale of the breach affected millions of customers and employees across the Indonesian financial sector.