An anonymous reader writes: Nvidia GPUs don't clear out memory that was previously allocated, and neither does Chrome before releasing memory back to the shared memory pool. When a user recently fired up Diablo 3 several hours after closing an Incognito Mode window that contained pornography, the game launched with snapshots of the last "private" browsing session appearing on the screen — revealing his prior activities. He says, "It's a fairly easy bug to fix. A patch to the GPU drivers could ensure that buffers are always erased before giving them to the application. It's what an operating system does with the CPU RAM, and it makes sense to use the same rules with a GPU. Additionally, Google Chrome could erase their GPU resources before quitting."