I am currently employed as a QSA (PCI, SSF, P2PE, PA-P2PE, PIN, and 3DS). I have worked in information security for twenty years with a specialization in application security and cryptography.
I am an advocate of FOSS, privacy, minimalist computing environments, OpenBSD, and 9Front.
All opinions expressed on this site are my own and do not reflect those of my employer or service providers.
I strongly prefer plaintext email. I use mutt for all correspondence.
Please avoid sending Microsoft Office documents. Plain text, HTML, LaTeX, and PDF are all preferred.
sshifflett at sdf.org
Please note: email is inherently observable by service providers. Consider using public key encryption.
My primary system is MX Linux on a salvaged 2012 MacBook Pro.
For travel and isolation, I use Tails from removable media.