Sierra Wireless resumes production after ransomware attack By 10:00 AM Canadian IoT solutions provider Sierra Wireless announced that it resumed production at its manufacturing sites halted after a ransomware attack that hit its internal network and corporate website on March 20. After learning of the attack, the company hired the services of "KPMG, one of the world’s leading forensic investigation and cyber incident response firms, to lead Sierra Wireless’ response and investigation into the incident." Siera Wireless' IT staff is currently working on restoring its internal systems after bringing back online its corporate website. The Canadian multinational added that the ransomware attack did not impact its customer-facing products and services since the affected internal IT systems are separated.