Push notifications pop up on your phone home and lock screen so you don’t miss important information or updates. These can be really useful for you to see important information as soon as it arrives, but it also runs the risk of allowing others to see personal information you may want kept private. Adjust push notifications in the settings for each individual app to make them more secure. You could, for example, have your IMs still appear in full on your lock screen, but completely turn off push notifications for apps to do with banking or health. You can additionally hide email content while still receiving a notification that you’ve received an email.