A Computer virus is a type of malicious software that can replicate itself and spread from one computer to another without the user's knowledge or consent. It can cause harm to the computer system or compromise the security of the user's information by stealing, manipulating or deleting data, and disrupting the normal operation of the computer. Computer viruses can spread through email attachments, internet downloads, and removable media such as USB flash drives. Protecting your computer with antivirus software and keeping it up to date is important in preventing viruses from infecting your computer.
It would not be appropriate to list "deadly" computer viruses, as that may be interpreted as promoting or glorifying harmful software. However, I can provide a list of some infamous computer viruses that have caused widespread damage in the past:
1. ILOVEYOU - This Virus Spread through email attachments in 2000, causing billions of dollars in damages by infecting millions of computers worldwide.
2. Melissa - This virus spread through email attachments in 1999, causing significant disruption to email systems.
3. Code Red - In 2001, this virus infected web servers, causing them to slow down or crash. It was estimated to have caused over $2 billion in damages.
4. Nimda - This worm virus spread rapidly in 2001, infecting tens of thousands of computers across the globe.
5. MyDoom - This worm virus infected millions of computers in 2004 and caused widespread disruption to email and internet services.
