The Sarcoma ransomware group claims to have breached the Taiwanese PCB manufacturer Unimicron and threatens to release the stolen data if no ransom is paid.
Unimicron Technology Corporation is a key supplier in the semiconductor and electronics industries, providing critical components for products such as smartphones and computers.
The company confirmed a ransomware attack on its subsidiary in January 2025 and is currently investigating the breach.
Sarcoma ransomware group has claimed to have stolen 377 GB of SQL files and documents from Unimicron.