Latest cybersecurity reporting from selected sources.

An ongoing data extortion attack targeting the widely-used education technology platform Canvas disrupted classes and coursework at school districts and universities across the United States today, after a cybercrime group defaced the service's login page with a ransom demand that threatened to leak data from 275 million students and faculty across nearly 9,000 educational institutions.

It's been seven years since the online cheating site AshleyMadison.com was hacked and highly sensitive data about its users posted online. The leak led to the public shaming and extortion of many AshleyMadison users, and to at least two suicides. To date, little is publicly known about the perpetrators or the true motivation for the attack. But a recent review of AshleyMadison mentions across Russian cybercrime forums and far-right underground websites in the months leading up to the hack revealed some previously unreported details that may deserve further scrutiny.