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These days we are all more aware of the need for security measures, if only to avoid disruption by theft or sabotage. Even on your home PC it may be crucial that certain files should be made unavailable to others, especially considering that whenever you link to the internet your data becomes open to attack from anywhere in the world.
Two strategies have been proposed to safeguard private data: authorisation and encryption. Authorisation is where people without the correct identification are forbidden access to files: encryption is used where data is changed into a form unreadable by someone without a key.
Encryption techniques can be cumbersome, and authorisation often fails because of sophisticated hacking, which can exploit holes in the Windows file handling procedures. Each strategy is powerful, but neither answers the problem. KeyDrive is a new program, which ingeniously combines these two strategies, and has been especially developed for both individual PCs, and in a Professional version for networked computers.
Each authorised user has a password and an i-key - a small device that fits onto a key chain and plugs into any USB port on a PC. The I-key has data encoded within it, rather like a smartcard that matches the password and signals that the person is authorised.
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