The ubiquitous USB thumbdrives that we use for medical reports, morbidity & mortality meetings, presentations, and so forth are the fomites of IT, spreading nasty trojan horses from hospital computer to hospital computer to home computer. The hospital IT technicians have their hands full trying to contain the contagion, fighting back with virus and malware scanners and a strict firewall system.
And as with infectious diseases, one tool in the arsenal is vaccination.
Try Panda Research USB Vaccine to disable your USB’s AutoRun file from becoming a source of infection. It’s good stuff.