Ransomware Attack At BTU International
Westford, Massachusetts-based BTU International, a thermal processing equipment provider, suffered a ransomware attack in August affecting its information technology (IT) systems where personal information ended up stolen.
“On or around August 11, 2025, BTU became the victim of a ransomware attack that affected its IT systems,” the company said in a notice to victims of the attack. “Upon discovering this activity, we immediately took protective actions to stop the unauthorized access, notified U.S. federal law enforcement, including the Federal Bureau of Investigation (“FBI”), assessed the security of our network and systems, and launched an investigation with the assistance of leading cybersecurity specialists.”
BTU suffered a ransomware attack in April 2021 from the DarkSide attack group.