Whenever you see "Free WiFi", you should always be on the lookout! It means that you should be careful when joining a free public network because it contains many risks and potential data stolen from you using the internet. Hackers have easier access to your devices when you are connected to an unsecured network such as places from fast food restaurants to even hotels. Make sure you optimize your settings on your device to avoid sharing data in public WiFI and don't do anything important such as online shopping where your information can be leaked. Stay safe cyber-ninjas! :)