Major Cyber Incident

York University has experienced a major cyber incident affecting a large number of servers and workstations. External incident responders have been engaged and investigation and containment has taken place throughout the night. The University is taking great caution with this event and to minimize the potential for further damage, the University’s connection with the Internet has been temporarily disabled while the investigation proceeds. Most York IT systems, including Moodle, will not be available while the network is disabled. Office 365 email/Teams and also the main York web site have not been affected by the incident and have been enabled to facilitate essential communications.

York Security Services operates 24/7 and responds to community calls at 416-650-8000 or at 416-736-5333 for urgent matters. For life-threatening situations where people or property are at immediate risk, call 911 first, then call Security Services.

Emergency Blue Lights and Safety Phones are located throughout York's campuses, and provide a direct line to Security Services.

You can also contact Toronto Police at 416-808-2222, Crime Stoppers anonymously at 416-222-TIPS (8477), at, Facebook Leave a Tip page, or text TOR and your message to CRIMES (274637). Download the free Crime Stoppers Mobile App on iTunes, Google Play or Blackberry App World.