Computer Viruses

Computer Viruses

-Damage/ destroy/ delete files-Make disks unreadable-Rendering a computer useless-Physical damage-Disabling functionality

Damages It Can Cause

Computer viruses were first widely seen in the late 1980s, they were created for several reasons. Firstly, because the spread of personal computers. Secondly, because the use of computer bulletin boards. Lastly, because floppy disks (when you turned on the computer the entire operating system would load so virus creaters took advantage of this). Early viruses would work when the user downloads and runs the program, then it would load itself into the memory and try to find other programs. Viruses now reproduce themself.

History

-Memory resident virus -Macro Virus -Direct action virus -Spyware-Overwrite Viruses -Trojans -Boot Sector Virus -Worms-Web Scripting virus -Adware-Polymorphic Virus -Time Bomb -Companion Viruses -Worms-Multipartite Virus -Directory Virus -Browser Hijacker -Multipartite Virus -File Infector Virus -Resident Virus

Types Of Viruses

-Use antivirus software and keep it up-to-date -Use a firewall -Secure your browser. -Don't open email attachments unless you're expecting them -Use your browser's privacy settings. -Turn on User Account Control -Use a pop-up blocker with your browser -Employ spam blocking or filtering tools to block unsolicited emails or instant messages -Don't click on pop-up ads -Don't conduct online financial transactions from a public computer or wireless network -Create strong passwords

How To Protect Your Computer