The person who leaked EA's Iron Man trailer stamped their own name on the evidence. The ID "USER #110ST937592XYZ402" is burned into the footage, and the cropped version people are sharing to hide it still shows the string twice. That ID is a forensic watermark. When a studio circulates a sensitive build, every recipient gets a unique copy with their identifier rendered into the video at multiple positions, sometimes with an invisible second layer written into the pixel data itself. Crop the…