Is it safe to give my MacBook to a service center with my data on it? I have to give my Macbook Pro to a service center for a few days to replace the display. Is it safe from the data perspective? Can they access it? (user login is password protected, but I think the data is not encrypted) Can they just take hard drive and copy everything? What should I do to avoid it?
Often a service center need access to the Mac to verify if the problems are solved. You can do a few things.


The most important thing first. Make a backup from all your data before you give your Mac to the service center.
Turn on FileVault. It encrypts the harddisk.
Make a second user and provide these details to the service center so they can test.