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Locking your Mac is good advice. This also records someone trying to use it while it's locked.

A lock prevents access; an audit trail tells you someone tried. Same reason people have both door locks and security cameras.

And to clarify the pricing: the Mac app and local history are free. Remote alerts are $4.99 once, not per month.

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I guess it could help determine physical tampering. While you lock your computer, someone could stick something on the laptop or inside it such as a microphone, location tracker etc. That app will help for that type of situation. Perhaps unlikely situation but still within the realm of possibility.

Also could be cool to see if your "friends" + "family" try to access your locked computer.

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