What is ransomware?

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Firewalls are like the security guards of a network—they monitor and control incoming and outgoing traffic based on predefined security rules. Their main job is to protect your network from unauthorized access, cyberattacks, and data breaches.

Ransomware is a type of malicious software (malware) that blocks access to your computer, files, or systems until you pay a ransom to the attacker.

Here’s how it typically works:

  1. Infection – It spreads through phishing emails, malicious downloads, or exploiting software vulnerabilities.

  2. Encryption or Locking – Once active, it encrypts your files or locks your system, making data inaccessible.

  3. Ransom Demand – The attacker demands payment (often in cryptocurrency like Bitcoin) in exchange for a decryption key or unlocking access.

  4. Risk of No Recovery – Even if you pay, there’s no guarantee you’ll get your data back, and paying encourages more attacks.

Example: WannaCry (2017) infected hundreds of thousands of computers worldwide by encrypting files and demanding payment.

Prevention tips:

  • Keep software updated (patch security flaws)

  • Use strong security software

  • Back up data regularly (offline)

  • Avoid clicking suspicious links or attachments

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