Understanding Network Security: Firewalls, VPNs, and Encryption

To keep our networks safe from bad guys, we often use different layers of security, like firewalls, VPNs, and encryption. Here’s how each one works:

1. Firewalls:

   • Firewalls act like guards at the entrance of a building.
   • They block unauthorized access and can stop about 60% of cyber attacks.
   • Firewalls check the data coming in and going out, following set security rules.

2. VPNs (Virtual Private Networks):

   • VPNs help secure your online activities by encrypting your data.
   • This means that hackers can’t easily see what you’re doing.
   • About 30% of internet users around the world use VPNs to protect their privacy online.

3. Encryption:

   • Encryption is like turning your sensitive information into a secret code.
   • It keeps your data safe from prying eyes.
   • It’s important to encrypt data because it's estimated that 60% of data breaches happen due to unencrypted information.

Using these three security layers helps reduce risks and keeps our information safer.
In fact, a layered security approach can lower the chances of a successful attack by up to 85%!