About Me

Security researcher, engineer and software developer with more than 20 years of experience.

Work: I primarily focus on application security, usable security, secure communications, and cryptography. I build and lead strong and dynamic teams, who cover all facets of security and privacy.

Writing: I write about my research, security in general, development and software design, and leadership through my blog, essays, and various publications. I also engage in some creating writing when I can.

Photography: I am a purist fine art photographer, working primarily in black & white, and focused on sharing new perspectives of the world. Limited edition prints of my work are available on my online gallery. I also have a background in photojournalism, and volunteer in this field when I can.

Contact