Do you fear the PACSman? Do Physical Access Control Systems seem equal parts simple and confounding? Do you lie awake at night atop your nest of ethernet cables, pondering grand questions of access control? Is Wiegand a phsyical card type, a data format, or a communications protocol? What is an ""encrypted"" credential and is it actually any more secure? How does one tell good access control apart from bad access control? Fear not, fellow hacker. Come discuss your woes with a professional ghost of access control learn how to keep the PACSman at bay. This 80 minute intensive is designed to serve as a crash course of Physical Access Control Systems. From credentials, to readers, to door controllers and beyond, Babak will share a practical and holistic understanding of what PACS looks like in the field, and intercept, clone, replay, and bypass your way through the system.