You have opened the Security & Privacy preferences pane, but you cannot access most of the settings, and notice a lock icon on the bottom left corner of the pane. What does the lock indicate and what must you do to make changes in this pane?

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The Answer of You have opened the Security & Privacy preferences pane, but you cannot access most of the settings, and notice a lock icon on the bottom left corner of the pane. What does the lock indicate and what must you do to make changes in this pane?

You Have Opened the Security & Privacy Preferences Pane, but You