How do I know if my MacBook Pro M4 is running Lockdown Mode

1. Check System Settings:
- Go to the Apple menu and select System Settings.
- In the sidebar, click on Privacy & Security.
- Scroll down to find Lockdown Mode. If it is enabled, you will see that it is turned on here[1][4].

2. Observe Functional Limitations:
- Messages: Most message attachments are blocked, except for certain images, videos, and audio. Links and link previews are unavailable[1][4].
- Web Browsing: Some websites may load slowly or not function correctly due to blocked complex web technologies. Web fonts might not display, and images could be replaced with a missing image icon[1][4].
- FaceTime: Incoming FaceTime calls are blocked unless you have previously contacted the caller. Features like SharePlay and Live Photos are disabled[1][4].
- Apple Services: Incoming invitations for services like managing a home in the Home app are blocked unless you have previously invited the person[1][4].

3. Notifications and Banners:
- You might receive notifications when an app or feature is limited due to Lockdown Mode. In Safari, a banner will indicate that Lockdown Mode is active[1].

4. Restart Required:
- Lockdown Mode requires a restart to activate or deactivate, so if you've recently restarted your MacBook after enabling it, this could be a sign that Lockdown Mode is on[1][4].

If you notice these limitations and changes, it indicates that your MacBook Pro M4 is running in Lockdown Mode.