π What is a Computer Virus?
Imagine a virus like a little tag-along that needs a ride. It attaches itself to a good file, like a game or a document, and when you open that file, the virus wakes up and starts causing trouble. It can copy itself and spread to other files on your computer.
π What is a Computer Worm?
A worm is like a super-independent traveler! It doesn't need to attach itself to anything. It can move around on its own and copy itself to other computers without you even knowing. Think of it as a digital earthworm crawling through the internet!
π» Virus vs. Worm: The Big Differences
| Feature |
Computer Virus |
Computer Worm |
| How it Spreads |
π¦ Needs you to open an infected file (like a game or document). It 'hitchhikes'. |
π Spreads on its own through networks, like the internet. It 'crawls'. |
| Needs a Host? |
π€ Yes, it needs to attach itself to a file. |
π« No, it's independent and doesn't need to attach. |
| How Fast it Spreads |
π Slower, because it waits for you to open the infected file. |
π Faster, because it can spread without your help. |
| Example |
πΎ A virus hidden in a downloaded game. |
π A worm that spreads through email and automatically infects computers. |
π‘ Key Takeaways
- π¦ Viruses need your help to spread; worms don't.
- π Worms can spread much faster than viruses.
- π‘οΈ Both are types of malware (bad software) that can harm your computer, so it's important to be careful online!