With most computers threatened by attacks coming through Web applications, it's no surprise that security would be a key piece of Chrome OS, Google's browser-based operating system that stores data in the cloud. Google showed off its new lightweight operating system designed for Netbooks and cloud computing on Thursday. As anticipated, it will rely on many of the same security features and concepts used by the Chrome browser.
"The browser is the operating system. We've expanded the browser to add operating system functionality," Caesar Sengupta, a group product manager at Google, said in an interview.

Chrome OS uses a combination of operating system-level protections and exploit mitigation techniques to limit the attack surface, or amount of code that can be targeted in an attack, and to reduce the likelihood of an attack being successful. "The biggest security impact is that all applications run within the browser," Sengupta said.

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