Connecting to a public WiFi network is at times convenient, like when you’re without internet service or can’t get any bars on your phone. On the other hand, connecting to public WiFi can be a risky endeavor. It’s impossible to be sure that someone else isn’t connecting to the same network to snoop on what you’re doing. Even if your traffic is encrypted they can still see which sites you are visiting. And if you’re using an app that doesn’t have encryption — and even today, many don’t — then they can see everything you are doing.
当您未开通互联网服务或手机信号弱时，连接公共 WiFi 网络确实很方便。但另一方面，连接公共 WiFi 可能会面临一定风险。你永远不知道会不会有其他人连接着同一网络，窥探着你在做些什么。即使您的流量被加密，他们仍然可以看到您正在访问哪些网站。如果你使用的应用并没有加密，那么他们就可以看到你在做什么。而事实上，直到今天，许多应用依然没有进行加密。