Having recently experienced a relative having their laptop stolen I began to look at my own Mac Book and wonder what I would be like if it got stolen. Whilst I accept that there is probably little chance of me getting it back, I am concerned over the information it holds and that perhaps if someone managed to log in they could log into sites I visit and perhaps request lost passwords etc. Having spent today doing a bit of browsing, there appears to be several diffeent pieces of software I could install such as Hidden, Prey and Undercover. My question is, are they worth purchasing, do they actually work and is it something that I should consider? I currently have a password to gain access to the Mac but thats it. I have today also read that I need to change the firmware password using the disc which I am going to do. In relation to using File Vault, I have read it can damage your hard drive and make the system run a whole lot slower ? Any help or guidance would be appreciated on this one.