Why is using public Wi-Fi dangerous for personal security?

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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.

Using public Wi-Fi is dangerous for personal security because these networks are often unsecured and make it easy for attackers to intercept or manipulate your data.

Here’s why it’s risky:

  1. Lack of Encryption – Many public Wi-Fi hotspots don’t encrypt traffic, meaning anything you send—passwords, messages, banking info—can be read by someone snooping on the network.

  2. Man-in-the-Middle (MitM) Attacks – Hackers can position themselves between you and the network, secretly capturing or altering data as it passes.

  3. Fake Hotspots – Cybercriminals can create “evil twin” networks with names similar to legitimate ones. If you connect, all your traffic goes through their system.

  4. Malware Injection – Public Wi-Fi can be used to push malicious downloads or redirect you to infected websites.

  5. Session Hijacking – Attackers can steal your active login session cookies, giving them access to accounts without needing your password.

💡 Think of public Wi-Fi like shouting sensitive information in a crowded room—anyone nearby can “overhear” it.

The safest way to use it is with a VPN, which encrypts your connection, or by avoiding sensitive activities (like banking) until you’re on a secure network.

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