"Ryan Purita of Totally Connected Security is one of the leading
computer forensic experts in private practice in Canada. He is a
Certified Information Systems Security Professional, holding one of
the most advanced security qualifications in the world. Working for
both the prosecution and the defence in legal cases, Purita has
also taught computer security to law enforcement agencies,
probation officers and social workers, and is currently developing
programs for the Justice Institute of British Columbia. Much of his
daily work is an extension of a system administrator's activities.
A good part of it involves the advanced use of open source tools,
including several standard system tools. His work methods offer
fresh perspectives on security, privacy issues and the relative
merits of Windows and GNU/Linux--to say nothing of a niche industry
where open source is more than holding its own.