4. 4 most common computer viruses Distribution: Shared Email Pirated software Shared USB stick Boot Sector- overwrites the boot sector on your hard drive or floppy disk Macro Virus- comes from a spread sheet or document through an email Adware- appears when advertisement pop up on the screen Trojan Horse- appear to be legitimate files. They don’t reproduce by infecting other files Worms- are detected and eliminated by anti-virus
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7. Computer Viruses come from... Opening attached email Installing programs from the internet Not reading the licensing agreement Down loading Anti-spyware tools