When going online, especially with free WiFi spots, you are exposed to hackers and other people who may want to look at your data. They can gain access to everything you submit, including bank details and very personal information. Even at home, your ISP can monitor everything you access, which means you can be under surveillance without even being aware.
In order to avoid being followed by others, you need a to use a virtual private network, or VPN. This means your entire internet connection goes through a secure server, usually by a company that maintains a very high integrity and promise to not keep track of you. This way you can go wherever you want and nobody will know but you.
Here are our recommended VPN providers. Most of them come with an internet security suite, but some are stand-alone: