When using the Internet at a public wireless area (hotspot), it’s generally a good idea to stick to visiting secure Web sites. Try to avoid conducting any sensitive business, such as online banking, while using a public network. But, if you must complete that bank transaction, be sure you’re on a secure site. One way to determine if a site is secure is if it has the small padlock icon on the bottom right of the screen. You can also check the URL; if it begins with https. it is secure.
Unfortunately, you have very little control over the people managing a hotspot. What you can do is safeguard your computer so you can use hotspots without fear of opening your computer to everyone.
Make sure that your firewall and anti-malware software is running and has all the latest updates. Your firewall will keep intruders from gaining access to your computer—just be sure to set your firewall to block all incoming traffic—and your anti-malware software will stave off most attacks. Also, keeping your notebook’s operating system and software updated with security patches and other updates will give your computer an additional layer of protection.
AVG is a free anti-virus software that also provides anti-spyware protection. Get the link to download the program in the PC Protection category under Free Programs.