Sean Byrne

I build security programmes, the infrastructure underneath them, and help build security into the products themselves. Identity, cryptography, access controls, deployment pipelines, abuse prevention.

I’ve been security lead at multiple companies through hypergrowth, brought in early, built the programme, and kept it standing while everything around it scaled. Dropbox, Patreon, Truework, among others. Regulated environments, research settings, and the kind of growth where yesterday’s architecture becomes tomorrow’s incident.

Writing

On security, systems & incentives.

Projects