Jeff Bryner is a veteran CISO and security entrepreneur with 15+ years designing and leading enterprise security programs across Mozilla, Vacasa, healthcare and utilities. He builds high-performing teams and pragmatic security products—spanning incident response, cloud and application security, and bespoke serverless tooling—to harden organizations through periods of rapid growth and funding events. As an instructor and SANS advisory board contributor he blends practitioner rigor with mentorship, having taught GCIH and CISSP courses and shaped security curriculum. He now runs vCISO services and a bespoke security vendor, helping clients integrate AI, manage risk, and operationalize incident response. Notably, he led open-source security efforts at Mozilla (MozDef, Observatory and related tooling) and has a track record of turning security architecture into measurable business outcomes. Based in Gig Harbor, WA, he pairs strategic leadership with hands-on engineering and a coach-first approach to talent development.
15 years of coding experience
17 years of employment as a software developer
BS, Management Science, BS, Management Science at Virginia Tech
Contributions:17 commits, 11 pushes, 5 branches in 1 year 1 month
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