The cybercriminals who seriously disrupted operations at a large hospital chain and held data hostage broke into a computer server left vulnerable despite urgent warnings since at least 2007.
The greatest cybersecurity threat to the U.S. comes from Russia and China, but Iran is trying to increase and spend more on its capabilities, the military's Cyber Command chief told Congress.
Even when courts compel law enforcement agencies to reveal the ways they hack into technology products, it's criminal suspects who are most likely to learn the details, not technology firms.
A cyberattack that recently paralyzed the hospital chain MedStar is serving as a fresh reminder of vulnerabilities that exist in systems that protect sensitive patient information.
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