A "security incident" impacting a popular classroom software caused issues for students at schools across the U.S. on Thursday, including Chicago-area universities like Northwestern and Dominican. Around 2:50 p.m., reports of issues with Canvas, a learning management system used by roughly 40% of higher education institutions in North America, began popping up on Down Detector. By 3:35 p.m., more than 8,500 reports had been made by users. #canvas #college #hacker #cybersecurity