Your phone has one dangerous setting that you need to disable right away

The problem with the auto-join setting on your smartphone is associated with its ability to connect to a public WiFi network without requiring the user’s permission. Public WiFi usually has a very low firewall and is not strong enough to block hackers. — Unsplash

If data from a recent survey is anything to go by, about 50% of the people tend to choose a public WiFi instead of their own mobile data when they are outside and where ever it is available.

While from a data standpoint it perhaps makes sense to save your phone data and use free WiFi instead, this particularly matters for those who are on pre-paid and limited data plans.