Christien Rioux, also known by his handle DilDog,[1] is the co-founder and chief scientist for the Burlington, Massachusetts based company Veracode, for which he is the main patent holder.

[2] Educated at MIT, Rioux was a computer security researcher at L0pht Heavy Industries and then at the company @stake (later bought by Symantec).

[1] While at @stake, he looked for security weaknesses in software and led the development of Smart Risk Analyzer (SRA).

[3] He co-authored the best-selling Windows password auditing tool @stake LC (L0phtCrack) and the AntiSniff network intrusion detection system.

[7][8] DilDog is best known as the author of the original code for Back Orifice 2000,[6][9][10] an open source remote administration tool.