The gang behind the Atlanta city shutdown and other attacks is selecting victims carefully and offering volume discounts to unlock whole organizations.

Cisco Talos said on Friday that 3.2 million servers are vulnerable to the JBoss flaw used as the initial point of compromise in the recent SamSam ransomware attacks. Worse, researchers said that thousands of servers have already been backdoored. Hardest hit have been K-12 schools running library management software published by Follett called Destiny, Cisco...

Hackers are escalating recent attacks against hospitals with new strains of server-side ransomware dubbed SamSam and Maktub. Unlike traditional ransomware samples that rely on gullible users to click on a malware-infected email attachment or visit a booby-trapped website, this new breed of ransomware is installed once attackers have exploited unpatched server vulnerabilities. To date, only...