By Dave Brajkovich ( December 1, 2021, 9:40 AM EST) -- The cyberattack on the Newfoundland and Labrador health-care system has been called the worst in Canadian history, with possible implications for national security. The attack, which appears to be a case of ransomware, delayed thousands of medical appointments and procedures. Ransomware occurs when hackers get control of a system, and this can include sensitive data, and they return it after you pay a ransom....