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Wired internet or wireless WiFi, the warnings are out there: Don’t visit any websites that you have important accounts with when using a public computer (hotel, airport, café, etc.).
Visiting even a more trivial account, such as an online community for cheese lovers, could sink you—in that a cyber thief might get your username and password—which are the same ones you have for your bank account, PayPal and Facebook.
Why is public WiFi such a bad thing for shopping and banking and other such activities?
- As already touched on, a roving hacker could glean your username and password, or credit card number and its three-digit security code when you do online shopping, because the cyber communications of public WiFi are not encrypted. They are not protected or scrambled up. The cybersnoop can thus see what everyone’s passwords, usernames and account information is.
- Hackers can also see what sites you’re visiting and what you’re typing on those sites.
If you plan on using public WiFi, make sure your device has full protective software including a firewall (and you should always have these anyways).
When connecting to public WiFi, always choose the “public” network rather than the “home” or “work” options when using Windows. This will prevent Windows from sharing files.
If you absolutely must conduct work or personal business while on public WiFi, then use a VPN: virtual private network; it scrambles communication into gibberish by encrypting it.
Malicious Locations for the WiFi
Don’t assume that a hacker is far away when he snoops for something to steal. For instance, the “hotspot” to connect online may have been set up by a thief like a spider in a web waiting for flies. Additional ways a hotspot could be malicious:
- HTTP connections can be hijacked by software called sslstrip. This software generates copycat links—a domain name that looks just like the authentic one, but appearances are deceiving because these imposter domain names use different characters.
- Hackers can use the WiFi Pineapple to set up the attacks mentioned above. The Pineapple is on the lookout for when a laptop is trying to connect to a network it recalls, barges in and claims the summoning. Pineapple is now in a position to perform additional attacks.
- Avoid online activity using public WiFi with important accounts. If their site has HTTPS with the padlock icon there is a degree of security here, however, the rule still stands: no public WiFi for important accounts. The only exception to this hard rule is if you have the VPN.
- Using a VPN will encrypt all of your online activities, freeing you to use public WiFi for anything. Hotspot Shield is a VPN provider that’s compatible with iOS, Android, PC and Mac. It runs quietly in the background.