Instructure, the company behind the online learning system Canvas, has reached a deal with hackers to delete data stolen in a cyberattack.

Duval County Schools has temporarily disabled Canvas after the learning management platform was hit by what is being called the largest educational data breach on record — affecting 275 million people nationwide.

A key online learning system used by thousands of schools and universities is back after a cyberattack knocked it offline, creating chaos as students tried to study for finals.

A cyberattack has caused chaos for students at thousands of schools as they study for finals.