2Update Firmware to the Current Version
3Set a Passcode
4Destroy Data if the Wrong Password Is Entered
5Passcodes in the ICU
6Forgetting Wi-Fi Networks
A trusted but unauthenticated network can be spoofed and automatically joined if the phone isnt set to forget the network after it was last used. According to CIS, if such a network has a common SSID, such as “default” or “linksys”, it is probable the iPhone will encounter an untrusted instance of a same-named Wi-Fi network and automatically join it.