>Absolutely not; the sandbox of Javascript apps is entirely within the browser. The CPU architecture may theoretically prevent a userspace app from breaking int

>Absolutely not; the sandbox of Javascript apps is entirely within the browser. The CPU architecture may theoretically prevent a userspace app from breaking into ring 0, but that's not the interesting thing; you're trying to prevent random apps from gaining access to all the tasty data in userland. I don't know why you felt compelled to state a categorical denial when the facts dispute it. Please read up on how security tokens work in Windows, for e.g. http://msdn.microsoft.com/en-us/library/bb625957.aspx http://msdn.microsoft.com/en-us/library/bb625957.aspx > Running a native game executable involves trusting it not to be malware. Running a webgl or HTML5 game does not. There is no difference between those two executions in modern operating systems that implement mandatory access control.