U.S. House lawmakers want to know how hackers broke into education tech giant Instructure twice, and stole reams of data from students who use the company's flagship student data software Canvas.

Cyberattacks on widely used third-party services like Canvas can expose sensitive data that hackers can later weaponize. Higher education institutions are often a prime target.

A cyberattack against one of the world’s largest digital education platforms has forced attention onto the vulnerability of U.S. schools’ data. ...