🦠 What is a Virus?
Data & Security
A virus is a program made to spread and cause problems in computers. It can copy itself, hide, and harm your files or systems.
Just like a real virus makes people sick, a computer virus makes your device "sick" too!
📂 How do viruses spread?
Viruses often hide inside emails, websites, or downloaded files. When you open these, the virus secretly installs itself and starts spreading.
💡 Tip: Never click on links or files you don't trust!
📜 Famous Computer Viruses
- 🔥 ILOVEYOU (2000): A fake love letter email that infected millions of computers worldwide.
- 🦠 WannaCry (2017): A virus that locked files and asked for money (ransom) to unlock them.
- 💾 Melissa (1999): Spread through email by sending itself to all your contacts.
⚡ Fun fact: Some viruses were made as jokes... but they ended up causing huge problems!
🔒 How can you protect yourself?
- 🛡️ Install antivirus software
- 📩 Don't open unknown emails or downloads
- 💾 Keep backups of important files
- 🖥️ Keep your software updated
🎯 Quiz
To complete this lesson, you must get at least 80% correct. Good luck!
🧠 What should you remember?
- 🦠 A virus is a harmful program that can spread and damage your computer.
- 📩 It spreads mainly through emails, websites, or downloads.
- 🔥 Famous examples include ILOVEYOU, WannaCry, and Melissa.
- 🛡️ Protect yourself with antivirus software and safe browsing!