5. NetWalker strikes again

NetWalker continued its attacks against higher education when two more colleges were revealed in June to have been victims of the ransomware. Its operators claimed to have stolen files both from Columbia College in Chicago and the University of California, San Francisco, posting screenshots of the stolen file directories. In a letter, the attackers urged their victims into paying: “We have very highly sensitive data like social security numbers and other private information which we can send samples to you as proof. We hope that you care for your students and are willing to work with us before this sh!t hits the fan on your College.”