Debasis has over 20+ years of insightful experience in Offensive and Defensive security. He got into security as early as 1998 when there were limited online resources, and one had to self-learn and rely more on textbooks, MSDN resources (Windows), or man pages (Linux/Unix) than on the internet.

A large part of his background has been working closely with software engineering companies to evangelise security at various stages of the software development lifecycle.

Although not limited to, he specialises in application security, infrastructure security; exploit development, and reverse engineering. While he has made several contributions towards the security community in the form of tools, exploits, and whitepapers, one of his notable contributions has been a remote Microsoft Windows exploit (MS08-067), which is still used on many occasions by the penetration testers.