When I was in high school, my USB drive was attacked by a virus. I believe it got infected when I copied my assignment from a computer at school. When I plugged the USB drive into my home computer, the assignment file disappeared. This made me suspect that my flash drive had been infected with a virus. So, I decided to scan my USB drive with antivirus software and remove the virus. Fortunately, I had an antivirus program installed, so my home computer wasn’t infected by the virus I had brought from school.