Is there a way of finding out what has been accessed on my MacBook Pro whilst in the possession of an apple authorised service centre?

Question

Hi Guys,
I'm a bit new to this discussion group thing although I've been using Macintosh computers for many years (showing my age).
I handed my MacBook Pro to be repaired at an authorised apple service centre. When I handed it in they said they needed to keep hold of it to run some diagnostics and requested my password. I've owned various models of mac for the the past 17 years and this is the first hardware problem I have encountered, hence I have never bothered to set up user accounts. 
As I live in quite a remote part of Sweden I am paranoid that some untrusted technician is going to make a copy of my music (11,000 tracks) or share some of my personal information (scanned copies of my birth certificate, passport, certificates, photos, etc.) on the web. Is there a way of finding out what activity has taken place whilst they've had it in their possession?
I appreciate any advice you guys can offer.
Thanks!
PS: I've already thought about the 'recently opened' menu and The machine in question is a MacBook Pro 17" (2011) running OS X 10.6.8 (need Rosetta).

Answer 1

I am paranoid that some untrusted technician is going to make a copy of my music (11,000 tracks) or share some of my personal information (scanned copies of my birth certificate, passport, certificates, photos, etc.) on the web.
If you put your info into the computer and hand it to another, you have to assume they will copy everything.
Why are you putting scanned copies of valuable identity information into a computer than can be hacked, stolen, lost or compromised by a dirty tech?
Have you lost your mind?
Is there a way of finding out what activity has taken place whilst they've had it in their possession?
No. The tech would just deny it if he did, or tell the truth which the answer would be "NO" in either case.
The employer won't ask that sort of questions without solid proof, less they make a enemy of the employee and/or risk being sued for defamation of character.
It's not like they bother to have a team of people watching over his shoulder that he doesn't stick a USB thumb drive of your data into his pocket to take home.
I am paranoid that some untrusted technician is going to make a copy of my music (11,000 tracks)
If it's iTunes music, it has your personal ID embedded into the song files. Most IT techs know this though.
I appreciate any advice you guys can offer.
Too late now, all you can do is not worry about it.
Take your personal info out of the machine and if you need it, burn cd/dvd copies, a few USB thumb drives, Iron Keys or self encrypting external storage drives with key and/or keypad.