Samsung Galaxy Tab S4 User Manual page 86

Apps and features
Using secret mode
In secret mode, you can separately manage open tabs, bookmarks, and saved pages. You can
lock secret mode using a password and your irises.
Activating secret mode
Tap → Turn on Secret mode. If you are using this feature for the first time, set whether to
use a password for secret mode.
In secret mode, you cannot use some features, such as screen capture.
In secret mode, the device will change the colour of the toolbars.
Changing security settings
You can change your password or the lock method.
Tap → Settings → Privacy → Secret mode security → Change password. To set your
registered irises as the lock method along with the password, tap the Irises switch to activate
it. Refer to Iris recognition for more information about using your irises.
Deactivating secret mode
Tap → Turn off Secret mode.
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