Trio-Tech 2026 Ransomware Data Leak

Trio-Tech International, a semiconductor testing and manufacturing firm, experienced a ransomware attack at its Singapore subsidiary in March 2026. The company initially assessed the incident as immaterial but reversed its assessment days later when stolen data was publicly disclosed. The breach timeline shows discovery and disclosure occurring within the same month, though the exact data volume and affected systems remain unquantified.

The attack involved ransomware deployment against the Singapore subsidiary's infrastructure, leading to data exfiltration prior to encryption. While specific technical details of the initial access vector were not disclosed, the ransomware operational pattern suggests credential compromise or vulnerability exploitation as likely entry points. The threat actor successfully extracted corporate data before triggering the encryption phase, though the exact data types compromised were not specified in available reporting.

The company's initial public statement characterized the breach as non-material, but this assessment was revised following confirmation of data disclosure. No ransom payment details were confirmed, and regulatory notifications or containment milestones were not specified in the available incident timeline.