New user in the mac book pro? Help!!!

[Enea]

Dear Users,

when I opened my mac book pro today I found apart fro me (I am the administrator and no body has had in hands this laptop) there is another user with name and surname.
How could that happen?
I must add that the computer was protected with a password which showed immediately after switching the computer on...
Is it a hacker?
I deleted his account as a whole from the computer at Settings-User and Groups- and on the left there were some +- and settings sign.
I also called Apple, but they couldn't give any suggestion how and who was the hacker.
How to restet the MacBokPro?
What can I do more to protect my laptop and prevent future guests?


Many thanks!!!

 

[chanyitian]

Dear Users,

when I opened my mac book pro today I found apart fro me (I am the administrator and no body has had in hands this laptop) there is another user with name and surname.
How could that happen?
I must add that the computer was protected with a password which showed immediately after switching the computer on...
Is it a hacker?
I deleted his account as a whole from the computer at Settings-User and Groups- and on the left there were some +- and settings sign.
I also called Apple, but they couldn't give any suggestion how and who was the hacker.
How to restet the MacBokPro?
What can I do more to protect my laptop and prevent future guests?


Many thanks!!!

is your laptop 100% brand new?

 

[Macman45]

That's what we need to know here...Did you buy your Pro new? Or (I'm guessing ) second hand.

If it is second hand, don't worry, you can re-install lion in due course. First thing yo do:

Open system preferences > sharing.

Untick all shared resources.

when you have done that, consider making a boot USB Lion install disk, instructions here:

https://www.macrumors.com/2011/08/08/apple-releases-utility-to-create-lion-recovery-usb-key/


Backup any critical data, email addresses, etc, don't worry about purchased apps, they can be downloaded again.

Post back if you want to proceed with a clean wipe / install of Lion.

 

[Enea]

New! Packed! From the store!
Even the mail app wasn't set yet.
Two weeks old only.
No physical access by other people.

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I do not see any changes made on this computer.
everything is as I have left, only the new account... which i deleted immediately without even opening it...