I am interested in hardware & embedded software security, protocols and security projects around mobile devices and the Internet of Things. I consider myself a hardware hacker. Before joining DarkMatter I was leading the Arm Research Security group where I worked on advanced IoT security solutions to allow detection and remote recovery from attacks or malware infection on embedded devices. One of my earlier security projects at Arm was the ARMmbed uVisor, a secure hypervisor that enforces hardware security boundaries between embedded software components using the ARMv7M memory protection unit on contemporary ARM Cortex M3/M4 microcontrollers. I have co-founded in 2006 open hardware projects like OpenBeacon.org and OpenPCD.org and designed the first open Active RFID reader hardware design to enable sophisticated research on human interaction and the spread of diseases as part of SocioPatterns.org. My open hardware OpenPCD RFID reader & sniffer designs targeting security researcher were used to break MIFARE Classic security. I had fun breaking HID’s iCLASS RFID reader & card security to make my point about security by obscurity and the treatment of fellow security researchers. As one of the three maintainers of the former Xbox-Linux Project I helped breaking the Xbox security in 2002 and ported the first Linux System to the Xbox. I enjoy designing secure ultra low power wireless devices with privacy-enabled protocols and services.