http://o54hon2e2vj6c7m3aqqu6uyece65by3vgoxxhlqlsvkmacw6a7m7kiad.onion/en/blog/2019/6/28/secure-wifi-happy-lifi
To put it briefly (and really skip at least 71 hops): when you use a device, that doesn't use strong encryption, to send any data through the Internet, from point Wi (device) to Fi (website), it is entirely exposed. It will be open for a cyber attacker to get in between these transmissions. Some might read, steal and even use that information against you. Even when using encryption, you reveal to all the hops between you and the site you are visiting the fact that YOU are visiting site X,...