Digital technologies evolution means great new opportunities for all of us. On the other hand it means new potential threats, such as data theft and unauthorized information access or modification. Computers are a reliable alternative to tons of paper locked in a strongbox, providing they are protected properly. These days, most of us store various bits of personal or business-critical information on our hard drives. This fact alone poses great threat to overall information security level since if the computer is accessed by an unauthorized person there is almost no way to protect our private information. Files contents can be read or modified to hijacker's desire easily. The above is true both for home and office PCs, but this is twice as important for notebooks and laptops. Imagine what would happen if you lose your laptop, containing your or your clients financial or private information.