Was at the premises today and noticed that the Secure VPN (part of the Norton 360 Mobile subscription) had automatically activated due to the unsecured Wi-Fi. Up until this point it was fine and expected behavior. However, when I left the premises and connected to the mobile data, the VPN remained enabled (I checked this in the Norton GUI and also in the iOS settings where the VPN was enabled). OK, I thought maybe it was a glitch. But when I got to the secure Wi-Fi, the VPN was still enabled, even though Norton confirmed that the Wi-Fi was secure. There was no way Norton could have automatically turned off its VPN. In the end, I had to do it manually in the Norton 360 GUI.
Why wasn't the VPN automatically turned off when I went back to data and/or secure Wi-fi? The Secure VPN feature says that the VPN will automatically turn on, but it also turns off when it's not needed.
iPhone 13 Pro Max with always the latest iOS.