Why one should not use wifi in open area, airport, and other places, and why
Using WiFi in open areas, airports, and other public places can expose you to significant security and privacy risks. Here’s why:
Security Risks of Public WiFi
Lack of Encryption: Many public WiFi networks do not use strong encryption. This means data sent over these networks can be easily intercepted by cybercriminals.
Man-in-the-Middle (MitM) Attacks: Hackers can position themselves between you and the connection point, intercepting your data—such as emails, login credentials, and credit card numbers—without your knowledge.
Fake Hotspots: Attackers often set up rogue WiFi networks with names similar to legitimate ones (e.g., "Airport_Free_WiFi"). When you connect, they can monitor or manipulate your traffic.
Data Snooping: On an unsecured network, others can potentially view your browsing activities, personal information, and login details.
Malware Distribution: Some attackers exploit vulnerabilities in public WiFi to inject malware into users' devices, which can then steal data, damage systems, or spread further.
Privacy Concerns
Tracking: Some public hotspots track your browsing habits and personal information for advertising purposes.
Session Hijacking: Without proper safeguards, attackers can hijack your online sessions, granting them access to your accounts (e.g., social media, email) even without passwords.
Why This Matters
Personal Data Theft: Sensitive info like passwords, banking details, private messages, and photos can be stolen.
Identity Theft and Fraud: Stolen data can be used to impersonate you or commit financial fraud.
Device Compromise: Malicious actors gaining access to your device can install software, monitor your activity, and control your device remotely.
Safer Alternatives and Tips
Avoid public WiFi for sensitive activities (banking, shopping).
Use your phone's mobile data or a personal hotspot.
If you must use public WiFi:
Connect only to known, password-protected networks.
Use a reputable VPN (Virtual Private Network) to encrypt your traffic.
Disable file sharing and AirDrop/Bluetooth when not needed.
Turn off auto-connect for WiFi networks on your devices.
In short, public WiFi is inherently risky due to the lack of control over the network and its security, making it an attractive target for cybercriminals. Avoid it for any activity that requires privacy or transmits confidential information.