Dennis Giese is a researcher with the focus on the security and privacy of IoT devices. While being interested in physical security and lockpicking, he enjoys applied research and reverse engineering malware and all kinds of devices. His most known projects are the documentation and hacking of various vacuum robots. He calls himself a "robot collector" and his current vacuum robot army consists of over 60 different models from various vendors. He talked about his research at the Chaos Communication Congress, REcon BRX, NULLCON, and DEFCON.