HERE'S a growing security problem for businesses that issue a lot of computers to staff - how can a guard, or a closed circuit TV camera, tell what's inside the briefcase of somebody leaving an office? And if they do find something, how can they tell whether or not the person owns it?

The London-based systems integration company ISIS has developed a software product - Aspects - to help them. A credit card-sized tag is attached to the asset - which could be a valuable painting but is more likely to be a laptop - and gives out a ...

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