Like iOS, Android does its best to be a secure platform. But one thing about operating systems is that more just developers are responsible for preventing unwanted people from gaining access to your data. Users have to be diligent about the apps they install, the networks they connect to, and even what information they show on their lock screens.

By default, Android will display enough content on your lock screen to give anyone a glimpse into what's happening in your life. You might get a text or email that includes sensitive information in the first sentence of the message body. 

With the default settings, when that message arrives, Android will display a portion of it on your lock screen, where anyone can see it.

Also: How to let specific people reach you when you're on Do Not Disturb on Android

But preventing sensitive content from appearing on your Android lock screen is actually quite simple. Let me show you how.

If you have a device running Android 10 or newer, which is most Android devices sold in the last few years, it should include the ability to hide content from the lock screen. I'll demonstrate with Android 13, running on a Pixel 7 Pro. 

With your device in hand, let's prevent sensitive content from reaching your lock screen.

Long-press any blank spot on your lock screen and then tap Home Settings.

A long press of the home screen brings you to this pop-up.

From the Settings window, tap the gear icon for At a Glance.

Accessing the At A Glance configuration in Android 13.

Tap "Sensitive content on lock screen." In the resulting window, look for "Sensitive notifications" and tap the on/off slider to the off position. This will prevent what the apps deem sensitive content from displaying on the Android lock screen.

You can also hide silent conversations and notifications from this same screen.

With this configuration taken care of, you'll still see notifications on your lock screen, but they won't display additional content if Android considers it sensitive. This way you will know something has arrived but you must unlock your device to view the information.

If you don't want someone reading content from your lock screen, this is one way of preventing that. Sure, you'll have to take an extra step to read the content, but the added security and privacy are well worth the inconvenience. You can also set it to hide silent notifications, hide notifications for certain apps, and hide all notifications.