Technology Review: Bill Gates says technology's biggest challenge is keeping data secure

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Speaking to an annual gathering of 15,000 computer security experts in San Francisco, Gates invoked the metaphor of a medieval castle to explain the problem: Programmers build bigger moats and thicker fortress walls -- but they don't bother to protect the corporate crown jewels when members of their fiefdom exit the castle and leave the drawbridge open.

''We used to think of the data center as a glass house that was very isolated,'' Gates said. ''But if we look (at) what actually goes on -- consultants come into your company, employees who are not onsite need full access -- we cannot think of that glass house as the way to define what can connect to what. We need a far more powerful paradigm.''

Source: Technology Review: Bill Gates says technology's biggest challenge is keeping data secure