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Ransomware hits Trio-Tech (NYSE: TRT) subsidiary with data disclosure risk

Stocktitan • March 20, 2026

Trio-Tech International reports a ransomware cybersecurity incident at a Singapore subsidiary that led to unauthorized disclosure of certain company data. The company isolated affected systems, took the network offline, engaged third-party cybersecurity experts, notified Singapore law enforcement, and is working with its cyber insurance provider.

The scope of impacted data and full financial effect are still under investigation, and management acknowledges the incident may be material to future results. As of this report, operations have not been materially disrupted, and Trio-Tech does not expect a material impact on financial results for the quarter ended March 31, 2026.

Ransomware caused data exposure at a Trio-Tech subsidiary, with impact still being assessed.

Trio-Tech International experienced a ransomware attack at a Singapore subsidiary on March 11, 2026, initially encrypting files on its network. By March 18, 2026, the situation escalated to unauthorized disclosure of certain company data, prompting management to treat it as a potentially material cybersecurity event.

The subsidiary responded by taking its network offline, activating incident-response plans, engaging external cybersecurity professionals, and notifying local law enforcement. It is also working with a cyber insurance provider on investigation, remediation, and potential claims, while beginning legally required notifications to affected parties.

The company states there has been no material disruption to operations so far and does not expect a material impact on financial results for the quarter ended March 31, 2026. However, the ultimate scope of compromised data and any longer-term financial or reputational effects will depend on findings from the ongoing investigation and the effectiveness of containment and remediation measures.

Source: View Original Filing on SEC EDGAR

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Ransomware Attack at Trio-Tech's Singapore Subsidiary Leads to Data Disclosure Trio-Tech International reported a ransomware incident at its Singapore subsidiary on March 11, 2026, which initially resulted in the encryption of certain files. By March 18, the situation escalated with the unauthorized disclosure of company data, prompting management to assess the incident as potentially material. The subsidiary activated its response protocols, took its network offline, and engaged third-party cybersecurity experts. Law enforcement in Singapore has been notified, and the company is working with its cyber insurance provider to support the investigation and remediation efforts. The full scope of the data affected remains undetermined, but operations have not been materially disrupted, and no significant financial impact is expected for the quarter ending March 31, 2026. The investigation is ongoing, and affected parties are being notified as required by law. 5 sources 49

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Ransomware hits Trio-Tech (NYSE: TRT) subsidiary with data disclosure risk

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