Email my kid received:

Due to the global cyberattack that has taken Canvas offline at universities across the country, all final exams and assignments, including papers, projects, etc., scheduled for Friday, Saturday, or Sunday are postponed. For the sake of consistency and clarity, the university is extending this policy to all classes, including those that don't currently utilize Canvas.

About the hack: https://www.bleepingcomputer.com/news/security/canvas-login-portals-hacked-in-mass-shinyhunters-extortion-campaign/