Here are a few tips on how to keep your iPad and or iPhone secure by locking down a few settings
Disable Voice Dial when the device is locked
To stop the device from making random calls due to an oversensitive mic you can disable the facility under the Settings, Touch ID & Passcode, look for and toggle off Voice Dial.

Enable Erase Data on iPad or iPhone
Everyone has a fear or our mobile device getting lost or stolen. All the data, photos and sensitive information stored on there. One way to ensure that this data does not fall into the wrong hands should your device go missing for one reason or the other is to set the Erase Data options after X amount of tries.
This option can be found the Settings, Touch ID & Passcode, look for Erase Data and toggle the option to enable
Disable Siri when the device is locked
Siri can be very handy but let’s face it there are some instances when we need her to be quiet. Like when our device is locked.
This can be done with Settings, Touch ID & Passcode, find Siri and toggle the option to off
Change the time it takes the device to sleep and lock the screen
Shorter auto-lock times is more secure.
This can be changed from Settings, Display & Brightness, Auto-Lock, select the desired length of time to auto-lock when idle.
Use a STRONG auto-lock release password
A strong access password is always an option for securing the device. Make use of capital, numeric and special characters.

Disable return missed calls on the lock screen
Disabling this feature ensures that no one but you returns missed calls from your device.
Settings Menu, Touch & ID Passcode, look for Return Missed Calls option and toggle the option to off
Disable Wallet from the lock screen of the device
Wallet is a very handy IOS tool but you really do not want anyone able to use it on the lock screen so it is advisable to switch this feature off.
At the Settings screen, Touch ID & Passcode, find Wallet and toggle the option to off
Disable notifications on the lock screen
You do not always want notification messages to appear on your lock screen so it is best to turn the feature off.
Launch Settings, Touch ID & Passcodes, find Recent Notifications and toggle the option to off.
Always backup your device to the cloud or another device to decrease the risk of data loss.
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