Hello friend!
Public Wi-Fi does present some security risks. Bad guys may create fake Wi-Fi that will steal your phone information when you connect to it.
Suggestions
1.When using free public Wi-Fi in a public place, contact the administrator of the public place to ensure that the Wi-Fi name is correct to prevent hacker attacks.
2. Install protection software on your phone to detect and prevent information theft.
3. When using public Wi-Fi, do not perform operations such as account login and password payment.
The best advice is to try not to use WIFI if you're not sure if it's safe.
Hope this helps!