How A Computer Virus Might Kill Or Injure You
Computer Viruses Are “Rampant” on Medical Devices in Hospitals
Credit: PR Newswire
Computerized hospital equipment is increasingly vulnerable to malware infections, according to participants in a recent government panel. These infections can clog patient-monitoring equipment and other software systems, at times rendering the devices temporarily inoperable.
While no injuries have been reported, the malware problem at hospitals is clearly rising nationwide, saysKevin Fu, a leading expert on medical-device security and a computer scientist at the University of Michigan and the University of Massachusetts, Amherst, who took part in the panel discussion.
Software-controlled medical equipment has become increasingly interconnected in recent years, and many systems run on variants of Windows, a common target for hackers elsewhere. The devices are usually connected to an internal network that is itself connected to the Internet, and they are also vulnerable to infections from laptops or other device brought into hospitals. The problem is exacerbated by the fact that manufacturers often will not allow their equipment to be modified, even to add security features.
In a typical example, at Beth Israel Deaconess Medical Center in Boston, 664 pieces of medical equipment are running on older Windows operating systems that manufactures will not modify or allow the hospital to change—even to add antivirus software—because of disagreements over whether modifications could run afoul of U.S. Food and Drug Administration regulatory reviews, Fu says.
As a result, these computers are frequently infected with malware, and one or two have to be taken offline each week for cleaning, says Mark Olson, chief information security officer at Beth Israel.
“I find this mind-boggling,” Fu says. “Conventional malware is rampant in hospitals because of medical devices using unpatched operating systems. There’s little recourse for hospitals when a manufacturer refuses to allow OS updates or security patches.”
The worries over possible consequences for patients were described last Thursday at a meeting of a medical-device panel at the National Institute of Standards and TechnologyInformation Security & Privacy Advisory Board, of which Fu is a member, in Washington, D.C. At the meeting, Olson described how malware at one point slowed down fetal monitors used on women with high-risk pregnancies being treated in intensive-care wards.
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