Learn how to walk away from your Mac without worrying about others easily getting access to your data or messing up your settings.
By setting your Mac to log you out, or require a password when you have left it, you can walk away from a Mac in a semi-public area like your work space or home office
There's an easy way to prevent people from using you Mac after you've left it, or to allow people to use your Mac but not let people mess with your stuff.
So, The first thing you want to do is go to your system preferences accounts. And you want to turn off 'automatic login'.
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