Android M brought a lot of useful features in terms of security. Among them, you can now unlock your phone using just your fingerprint (if your phone supports it, that is), and it's easier than ever to pass your phone to someone without being afraid of them looking through your stuff, with the all new Guest mode.
And if you're worried about your phone showing sensitive information in notifications, there's a way to change that as well - you might have seen this already in the setup process when you first booted up your phone, but if you missed it there's a simple way to make sure no precious info is leaked in the lockscreen. Here's what you need to do:
First, go to the Settings menu and under the Device section you'll see Sound & notification
. Tap on it and enter the Sound & notification menu (I'm surprised this isn't listed under Security
, where I would've expected it to be).
Once there, you'll see a menu item simply called When device is locked
, just like in the image below. One tap there and you'll open up a menu showing you three options.
The three toggles you can set this option to can either Show all notification content
, where every notification will pop up on your lockscreen and potentially personal messages can be seen by anyone without unlocking your phone; Hide sensitive notification content
, which will hide things like email excerpts, and anything from third party apps that can be considered sensitive information; and Don't show notifications at all
, which disables notifications on your lockscreen altogether.
Depending on how much your phone is seen by others, you can change these settings to your liking. Personally, I choose to show all notification content, because my phone is always less than an arm's length away from me, but if you're more privacy-oriented this could be very helpful.