This feature creates a trusted channel between software and the video card. So, no other software can read or change data that is being sent to the display by the protected software. In order to work, however, you need to have a video card that has this feature, i.e., as far as we know the current video cards available on the market today cannot be used to create this protected environment, since they lack LaGrande Technology.

On the other hand, since LaGrande Technology needs a new generation of chipsets, it looks like Intel will launch chipsets with integrated graphics supporting this feature.

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Figure 8: Protected graphics overview.