FEDERALItem 1.05 · mandatoryMalwareTechnologyInformationIndustrial MachineryRansomwareData EncryptedData ExfiltratedLowActive
Trio-Tech International
bd_9a5efd6faf05d5a9 · schema v1 · pii pii-v1
Full breach record for Trio-Tech International →On March 11, 2026, a Singapore-based subsidiary of Trio-Tech International experienced a ransomware incident that encrypted certain files. On March 18, 2026, the incident escalated with unauthorized disclosure of company data, leading management to conclude the event may be material. The subsidiary took its network offline, engaged third-party cybersecurity professionals, notified Singapore law enforcement, and is notifying affected parties. Scope of affected data remains under investigation.
SEC clockMateriality determined Mar 18, 2026 → Filed Mar 20, 20262d ✓ SEC 4-day OK9 days discovery → filing
⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.
Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident
Source provenance
- Source URL
- https://www.sec.gov/Archives/edgar/data/732026/000143774926009193/trt20260320_8k.htm
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
- Filed at
- Mar 20, 2026
- Raw hash
- 9c56457ba6429e0e619eea920b88fed0d74f65a574029c2f4a253d5059976170
Source filing
AI-assisted summary above. The structured extract on this page was generated from the document below. Inspect the source to verify or correct any field.
Reporting entity
- Name
- Trio-Tech Internationalnorm: trio tech
- SEC CIK
- 0000732026
Victim entity
- Name
- Trio-Tech Internationalnorm: trio tech
- SEC CIK
- 0000732026
- Industry
- TechnologyllmNAICS 333310 · Commercial and Service Industry Machinery Manufacturing
Incident
- Discovered
- Mar 11, 2026
- Materiality determined
- Mar 18, 2026
- Notification sent
- —
- Affected individuals
- Not disclosed
- Data types
- —
- Attack vector
- Ransomware
- MITRE ATT&CK
- T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
- Threat actor
- ExternalFinancial
- Regulator citations
- Notified law enforcement in Singapore
Compliance
- Time to disclose
- 9 days(9 days from discovery to filing)
- Compliance flags
- SEC 4-day OK · 2d
- Discovery-date grounding
- occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.
- Clock breakdown
Statute Window Elapsed Threshold Status SEC Materiality determined: Mar 18, 2026→ Filed: Mar 20, 20262d cal. 4 business days SEC 4-day OK
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.