Disabling Wi-Fi and Bluetooth from iOS 11’s Control Center doesn’t necessarily turn it off
Wednesday, September 20, 2017 at 9:47PM 
Turning off Wi-Fi and Bluetooth on iOS 11 is a pretty easy thing to do. Just swipe up and press two buttons in the Control Center. But according to Mashable, this doesn’t fully turn off these features anymore. Instead, it just disconnects you from existing Bluetooth and Wi-Fi connections. So if you move to a new location or something, it’ll turn on again. To completely turn off these features, you’ll need to head to Settings > Wi-Fi and Settings > Bluetooth.
It might makes sense for Apple to keep these features on, especially with the increasing number of interconnected devices the company is selling. But it would’ve been good to be upfront about this. Some might not consider this a big deal but we have learned recently that hackers can gain access to your device via a Bluetooth flaw and we know how easy it is also to access your device via Wi-Fi. It might be worth your time to dig into your settings now.