Explore the world of mainframe security in this 56-minute conference talk from BSidesLV 2014. Delve into legacy platforms, the mainframe community, and practical demonstrations of security techniques. Learn about user revocation, FTP access to mainframes, and Python scripting for mainframe interactions. Gain insights into Unix system services on mainframes and discover how to approach attacking this platform. Conclude with valuable homework assignments to further your understanding of mainframe security.