With their ability to carry malware into sensitive environments, USB drives have long been a red flag for industrial facilities. A new study puts hard data behind those concerns and shows how the drives can propagate advanced threats like Stuxnet and Trisis. Of the 50 industrial sites on four continents where Honeywell International analyzed USB usage, 44 percent of sites detected and blocked at least one malicious file. These weren’t just run-of-the-mill files: 15 percent of the threats detected and blocked were infamous malware packages like Stuxnet and Trisis (2 percent each), Mirai (6 percent) and WannaCry (1 percent). About a quarter of the threats blocked could cause “a major disruption to an industrial control environment,” according to Honeywell, an industrial automation giant. The overall volume of USB-based malware found by Honeywell researchers was relatively small, but the types of threats detected were more serious than researchers had anticipated. “It’s […]
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