University of Maryland Medical System investigating malware attack

Sarah Meehan reports:

The University of Maryland Medical System is investigating a malware attack on its computer system that occurred early Sunday, according to the hospital network.

A ransomware-style attack affected about 250 of the hospital system’s 27,000 devices, said Jon Burns, the hospital system’s senior vice president and chief information officer. Because the group’s computers were not encrypted, no ransom was required to unlock the devices, and the hospital system was able to isolate the virus before it spread further, Burns said.

After the medical system became aware of the attack at about 4:30 a.m. Sunday, the hospitals took their networks and devices offline by about 7 a.m. The 250 affected devices — primarily desktop computers — were quarantined, and the remainder of the system was back online by Monday morning, Burns said.

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