Ryan Speers and Ricky Melgares of the Dartmouth College Trust Lab presented at ShmooCon 2011, the annual East Coast hacker convention. They discussed which proposed wireless sensor network attacks actually work on ZigBee, and provided proof of concept implementations of theoretical attacks. They presented a tool that autonomously discovers and profiles networks in real time, gathering as much information over time about a network and its devices, their relationships, and traffic flows among other things.