Can’t connect to WiFi after updating IOS 15

Hey there, and welcome to Apple Support Communities, trunzo121!

From our understanding, you’re unable to connect to Wi-Fi. We can certainly understand your concern and can help provide some insight.

We see you previously reviewed “iCloud security overview”. This is a great article to help understand the security features of iCloud.

To address your Wi-Fi concern, let’s start with the steps found here: If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network - Apple Support

If you’re still unable to connect, reach out to Apple Support here: Contact Apple Support

Kindest regards!