Hackers tell schools to pay by Tuesday or 275 million students' messages and IDs go public - Canvas operator Instructure confirms breach

Update on the Instructure breach we covered May 2: Instructure confirmed Saturday that names, email addresses, student ID numbers, and private messages between students and teachers were exposed. ShinyHunters now claims 275 million individuals across 9,000 schools worldwide are in the dataset, totaling 3.65+ TB of data including billions of private messages. The group set a pay-or-leak deadline of May 6 - this Tuesday. The Salesforce instance was also breached. This is Instructure's second breach in eight months. PowerSchool's January 2025 breach with similar scope produced a $17.25 million settlement.

Check

If your school or organization uses Canvas, prepare your student/parent breach notification template this week - Instructure data is likely to be public by Tuesday.

Affected

Schools, universities, and corporate training organizations using Canvas - 9,000 institutions globally, 275 million individuals. Acute risk for K-12 districts where data on under-13 students falls under COPPA and state student privacy laws (NY Education Law 2-d, California SOPIPA, ~130 similar state statutes). Salesforce-integrated Canvas tenants face additional exposure.

Fix

Rotate every Canvas API key and re-authorize integrations as Instructure has now mandated. Pull your district's Canvas data-sharing inventory and identify which downstream tools held copies. For K-12: prepare COPPA and state-AG notification templates now - PowerSchool's breach triggered class actions in 11 states. Brief students, parents, and faculty that any 'Canvas account verification' email this week is potentially hostile.