Westport Fuel suffers cybersecurity incident

Executive Summary

• Westport Fuel Systems Inc. identified unauthorized access to its internal IT business applications and employee information on March 17, 2026.
• The company engaged experts and activated its incident response protocol immediately; manufacturing operations remain unaffected and fully intact.
• Due to the timing of the incident within the year-end financial reporting cycle, Westport is assessing the integrity of its financial results and expects to file its annual financial results after the March 31, 2026, continuous disclosure deadline.

Key Details

• Incident Date: March 17, 2026.
• Nature of Breach: Unauthorized access to certain internal IT business applications, business information, and employee information.
• Response Actions: Engaged external experts, activated incident response protocol, and took action to contain the incident. Investigation is ongoing.
• Operational Impact: Manufacturing operations are managed on dedicated servers separate from the accessed systems. No disruption to manufacturing activities, customer orders, or operational delivery is anticipated. No material impact on daily business operations is currently expected.
• Financial Reporting Impact: The company is undertaking an essential internal assessment of the integrity and accuracy of its financial results.
• Filing Delay: Westport expects to file its annual financial results after the March 31, 2026, continuous disclosure deadline required under applicable securities laws.

Notable Quotes

• "The company's manufacturing operations are managed on dedicated servers that are separate from those accessed in connection with this incident. As a result, the incident has not affected the continuity of the company's manufacturing activities."
• "Westport is undertaking an essential internal assessment of the integrity and accuracy of its financial results prior to releasing them."