A supply chain attack is the likely cause of Taiwanese giant chipmaker TSMC finding itself on the infamous ransomware group LockBit’s leak dark web site on June 29, 2023.
The accompanying $70m ransom is the fourth-largest sum demanded in ransomware history.
The day before this information appeared on the leak site, a threat actor known as Bassterlord, linked with LockBit affiliate National Hazard Agency, started live-tweeting what appeared to be a ransomware attack on TSMC, sharing screenshots with information related to the company.
TSMC has shared a statement with various press outlets admitting that one of its contractors had been breached but that the incident has not affected TSMC's business operations and has not compromised any customer information.
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