Some College Finals Delayed After Canvas Online Platform Hacked

Disruptions for college students are set to drag into the weekend after hackers briefly took down an online platform used by thousands of schools around the world, from Princeton University in the US to the University of Manchester in the UK and the Universidad del Desarrollo in Chile.

Instructure Inc., which runs the Canvas service used by students to take tests and get grades, said it was forced to suspend the portal Thursday after breaches by a “criminal threat actor.” The perpetrators exploited a vulnerability in a specific account for teachers, the company said, gaining access to some of its websites. The KKR & Co.-owned company restored much of the service Thursday, though the teacher accounts remain suspended.