Trio-Tech International, a semiconductor testing and manufacturing services company, disclosed that hackers deployed file-encrypting ransomware on the network of one of its subsidiaries in Singapore. The attack represents the latest in a series of cybersecurity incidents targeting companies in the semiconductor supply chain.
The company has not disclosed the specific ransomware variant involved, the extent of data encryption, or whether operations at the affected subsidiary have been disrupted. No details were provided about ransom demands or whether the attackers successfully exfiltrated sensitive data before deploying the encryption payload.