Not particularly proud of this work, but if you can look past the fact that it is mine, most of the content from this was converted into a summary table and included in the following journal paper:
Singh, N., & Chandra, N. (2013). Retrospect of machine learning techniques for designing secure system. International Journal of Computer Applications, 68(20).
Cited as:
Mark Havens, “Brief History of Computer Security”, Dallas makerspace, 2010.