Why Canvas hacked is trending

<p>An apparent cyberattack Thursday shut down Canvas — an education platform used by universities and K-12 schools across the US — during a time when many students are taking or preparing for their final exams. CNN's Natasha Chen explains what we know about ShinyHunters, the group who has claimed responsibility for the hack. Discover more videos, including live streams and exclusive storytelling, on our <a href="https://www.cnn.com/watch">Watch</a> page.</p>