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• A bios lock is effective against intrusion attempts by novices but this method can easily be bypassed by simple manipulation of hardware.
• A simple power lock designed to attach to your power source can be used to prevent data theft. This method may be effective for desktop computers during short trips away from your desk but it is not the answer for all other battery- powered computers.
• Computer security programs (software only) are available to prevent unauthorized access by using a password based security procedure. However, software-based systems are only effective against break in attempts by novices and can be by-passed with simple software manipulation.
• Hardware/software systems are available to protect your computer more securely than software only systems. They comprise dual security functions of software and a hardware key that makes unauthorized access more difficult. Nevertheless, these systems are designed for modest protection from data theft and are most effective for blocking unauthorized access when you step away from your computer for a short period of time. These security systems are usually based on a blocking screen format. Once the system is activated (via password or by removing the smart card or token from their respective readers) the blocking screen will appear and eliminate the possibility of unauthorized users accessing data files. These systems are solutions for moderate security but can be bypassed given enough time alone with the computer. VirtualGate is one example of this type of security system. For more information go to http://www.armadillo.com.hk/virtualgate.htm
• Encryption software and/or crypto-hardware/software systems are very effective against data theft and are commonly used by financial institutions, governments and large corporations. This is by far the best solution as it combines many of the advantages of the previous systems. For more information check out GateKeeper at http://www.armadillo.com.hk/gatekeeper.htm.