Speakers: Maxim Goryachy, Mark Ermolov Engaging universally available deep debug functionality of modern Intel cores, with zero software or hardware modifications required on the target side. Our research team at Positive Technologies has discovered a way to engage the advanced debug machinery on modern Intel cores. This advanced machinery can be employed to exercise deep control of the running system across all execution modes using merely a USB port connection, with zero software or hardware modifications required on the target side. It goes without saying that such functionality carries profound security implications.