I try to tell all of my clients who may be traveling about the importance of using public Wi-Fi differently than they use their secure home Wi-Fi, but this article from www.consumer.ftc.govsays it best!
Wi-Fi hotspots in coffee shops, libraries, airports, hotels, universities, and other public places are convenient, but often they’re not secure. If you connect to a Wi-Fi network, and send information through websites or mobile apps, it might be accessed by someone else.
To protect your information when using wireless hotspots, send information only to sites that are fully encrypted, and avoid using mobile apps that require personal or financial information.
How to Tell If a Website is EncryptedIf you send email, share digital photos and videos, use social networks, or bank online, you’re sending personal information over the internet. The information you share is stored on a server — a powerful computer that collects and delivers content. Many websites, like banking sites, use encryption to protect your information as it travels from your computer to their server.
To determine if a website is encrypted, look for https at the start of the web address (the “s” is for secure). Some websites use encryption only on the sign-in page, but if any part of your session isn’t encrypted, your entire account could be vulnerable. Look for https on every page you visit, not just when you sign in.
What About Mobile Apps?Unlike websites, mobile apps don’t have a visible indicator like https. Researchers have found that many mobile apps don’t encrypt information properly, so it’s a bad idea to use certain types of mobile apps on unsecured Wi-Fi. If you plan to use a mobile app to conduct sensitive transactions — like filing your taxes, shopping with a credit card, or accessing your bank account — use a secure wireless network or your phone’s data network (often referred to as 3G or 4G).
If you must use an unsecured wireless network for transactions, use the company’s mobile website — where you can check for the https at the start of the web address — rather than the company’s mobile app.
Don’t Assume a Wi-Fi Hotspot is SecureMost Wi-Fi hotspots don’t encrypt the information you send over the internet and aren’t secure. In fact, if a network doesn’t require a WPA or WPA2 password, it’s probably not secure.
If you use an unsecured network to log in to an unencrypted site — or a site that uses encryption only on the sign-in page — other users on the network can see what you see and what you send. They could hijack your session and log in as you. New hacking tools — available for free online — make this easy, even for users with limited technical know-how. Your personal information, private documents, contacts, family photos, and even your login credentials could be up for grabs.
An imposter could use your account to impersonate you and scam people in your contact lists. In addition, a hacker could test your username and password to try to gain access to other websites – including sites that store your financial information.
Protect Your Information When Using Public Wi-FiHere’s how you can protect your information when using Wi-Fi:
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