A cyber-espionage campaign exploiting vulnerable Microsoft server software has escalated to deploying ransomware against victims, Microsoft said, marking a significant shift from typical state-backed data theft operations to attacks designed to paralyze networks until payment is made. The campaign by a group Microsoft calls "Storm-2603" has compromised at least 400 organizations, according to Netherlands-based cybersecurity firm Eye Security, quadrupling from 100 victims cataloged over the weekend. The National Institutes of Health confirmed one server was breached and additional servers were isolated as a precaution, while reports indicate the Department of Homeland Security and multiple other federal agencies were also compromised.Read more of this story at Slashdot.