|found on reddit|
One of the most important reason to learn about computer security is that the pros you might otherwise defer to don't always know what the heck they're talking about. Alternately, they may know exactly what they're saying and are trying to take advantage of the fact that you don't. Either way, you're better off if you know something about it as well, just to verify you're dealing with the right kind of professional.
And if a professional takes that kind of wrench to your computer, find a different professional.