By David Saunders and Heidi Wachs ( July 17, 2017, 12:36 PM EDT) -- On May 12, 2017, a ransomware attack affected more than 200,000 devices in 150 countries. It shut down medical care in the United Kingdom and created confusion for countless other medical systems, as well as private sector and government institutions. The attack, which later became known as WannaCry, preyed primarily on machines running outdated versions of operating systems that were no longer being supported. A little more than a month later, on June 28, 2017, another ransomware attack spread internationally, initially crippling critical infrastructure in Ukraine, and subsequently spreading across the globe. That followed the June 26, 2017, report that Airway Oxygen, a provider of oxygen therapy and home medical equipment had been the victim of a ransomware attack that impacted approximately 500,000 patient records....