Widgets are great … if you actually use them. A quick swipe right on the lock screen will reveal the Today view and its widgets, and it's very easy to accidentally open. Plus, others can see your widgets without any authentication. You could manually remove every widget, but that would not prevent the right-swipe from opening the Today view.
Before iOS 10 came out, you would have to go back to the screen Today view to see your widgets. But in iOS 10 and later, it's much easier to access, even when you do not want to, with a quick right-swipe on the screen. However, because of the locked or unlocked state, the locking screen can be either very easy or a multi-step process that removes some basic functionality from your lock screen.
Note: If you do not use a passcode or biometrics, only Option 3 below will work.
: Disabled Widgets in a 'Locked' State
Ever since iOS 10, your iPhone's lock screen could either be in a locked or unlocked state. When you raise your iPhone 6 s or newer model, the lock screen would wake up in a locked state. On an iPhone X or newer, you can tap into a locked state.
In a locked state, you or anyone else can access the widgets by swiping […] Today view. To prevent this from happening, open the Settings app, then tap either "Touch ID & Passcode" or "Face ID & Passcode." Allow Access When Locked section.
Now, whenever you or anyone else tries to see the widgets in a locked state on the lock screen, nothing will happen.
Note: If your device does not have Touch ID or Face ID, this option will remove lock screen widgets entirely.
Option 2: Disabled Widgets in Locked and Unlocked States
The first option is really useful. So, you might not know what you are looking for. However, if you're worried about accidentally opening it –
If you have an iPhone model with a home button and you are using touch ID, whenever you rest your fingers on the home button, it will unlock the lock screen, making it possible to swipe to reveal widgets. Instead, you can make it so, when you rest your finger, it'll turn out to be on the lock screen.
To do so, follow the steps in Option 1 above, then open the Settings app, select "General," then "Accessibility." From there, hit "Home Button." then enable " Rest Finger to Open."
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