Data stolen from Canvas hack has been returned

(CNN, KYMA) - Data stolen in a cyberattack that shut down Canvas, an educational platform used by schools and universities across the country, has been returned.

Parent company Instructure Holdings, Inc. said Monday hackers accessed usernames, email addresses, enrollment information and messages.

Information, including course content, submissions and login credentials, was not compromised.

A ransom note signed by the hacking group appeared on Canvas sites last week.

The hackers claimed to have breached data from 275 million users and gave schools until May 12 to negotiate a settlement.

Instructure says it received digital proof the data has now been deleted, and that customers would not be extorted.

The company did not say whether it reached a settlement with the hacking group.