Android Help says:

Control how notifications show on your lock screen


Option 4: Hide sensitive content from notifications on your lock screen

  1. Open your phone's Settings app.
  2. Tap App & notifications and then Notifications.
  3. Under "Lock screen," turn off Sensitive notifications.

However, I cannot find any information on what is actually considered a sensitive notification.

So, how can I see (and possibly change) what sensitive notifications are?

1 Answer 1


The notification's sensitivity (visibility) is set by the developer, but can be overridden (to some extent) by the user.

There are 3 types of notification's lock screen visibility:

  1. Public: not sensitive, the full content is always shown on the lock screen
  2. Secret: never shown on the lock screen
  3. Private: sensitive, only the basic info (title and short content) is shown, but the full content is hidden

By default, all notifications are private (sensitive) unless overridden by the developer.

Changing the "On the lock screen" setting affects all notifications:

  1. Don't show notifications at all: all notifications are treated as secret
  2. Show all notification content: all notifications are treated as public
  3. Hide sensitive notification content: all notifications are treated as private, except for public notifications.

The user can also control per-app notification visibility, either from the app itself or from the Android system (general setting on Android 7.1 and below, or more fine-grained using notification channels on Android 8.0 and above).

Though, based on self-experiment, it's impossible to override per-app notification visibility to higher visibility than the general lock screen's setting. (e.g. when the lock screen is set to "Don't show", setting per-app to "Hide sensitive notification" does not work and instead will not show any notifications).

  • Need further testing/confirmation: whether visibility overridden by the developer will trump the lock screen's setting and per-app notification setting or not (e.g. public notifications still show on "Don't show"). That said, this answer might lack conclusive evidence. Feedback is really appreciated, and anyone is free to post a better conclusive answer instead.
    – Andrew T.
    Dec 11, 2019 at 14:07

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