Hardware Theft Protections
Hardware anti-theft solutions are one of the most effective. They include biometric systems like voice or fingerprint recognition, smart card user identification and authorization, USB keys and similar. Although it would not protect your laptop from being stolen, it would successfully prevent thieves from accessing your data or even booting your laptop.
Biometric Systems
Some laptop manufacturers offer laptops with biometric systems build-in. These are however top shelf models and you would not find such feature in cheap refurbished laptops. However, there are some solutions, which allow you to add biometric fingerprint system to your laptop. They usually work as USB or PC Card hardware. Because of this, they have to function with operating system. This makes bypassing them quite easy. Combining them with data encryption makes them very effective.
USB Keys
You don't leave your car or house unlocked. So why not also lock your laptop with USB key? They are small and easy-carrying so you can keep them for example together with your car keys. All of them have also at least 128MB of memory, which you can use to store sensitive data. But their main usage is making thief unable to run your laptop without USB key device. They are relatively cheap and good anti-theft solutions.
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