As of March 1, 2012 all apps submitted to the Mac App Store must implement sandboxing.

FORBES: Apple's Mac OS Lockdown To End Developer Independence

Google bought at least part of that sandboxing ability with its acquisition of software firm GreenBorders in May of 2007.

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Check out its comic book illustration of how sandboxing works here.

FORBES: Google's Chrome Leaves Another Hackathon Unscathed

By next spring, any software sold through the new Mac App Store will have to comply with this new policy, which is known as sandboxing.

FORBES: Apple's Mac OS Lockdown To End Developer Independence

Writing an exploit program that can break those virtual boundaries isn't easy, says SANS Web security researcher Johannes Ullrich, and sandboxing would add a significant layer to the Web's armor.

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In addition to checking daily for security updates, Mountain Lion includes app sandboxing to keep misbehaving apps from compromising your system, and kernel ASLR for improved protection against buffer overflow attacks.

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For those tracking the growing malicious elements on the Web, Chrome's innovation--and GreenBorder's contribution to the open-source browser--is a technology known as "sandboxing, " a tactic that limits Web applications' access to a computer's memory beyond a virtual border.

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