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How Google reinvented security and eliminated the need for firewalls

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SAN FRANCISCO -- In some ways, Google is like every other large enterprise. It had the typical defensive security posture based on the concept that the enterprise is your castle and security involves building moats and walls to protect the perimeter.

Over time, however, that perimeter developed holes as Google’s increasingly mobile workforce, scattered around the world, demanded access to the network. And employees complained about having to go through a sometimes slow, unreliable VPN. On top of that, Google, like everyone else, was moving to the cloud, which was also outside of the castle.

In other ways, Google is unlike any other company. Without much of a detailed business plan or cost/benefit analysis, Google execs gave the green light to an ambitious project aimed at totally reinventing the company’s security infrastructure.

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