End-to-End Encryption Is a Design Problem

Most people don't think about encryption until something goes wrong. A breach, a leak, a headline. Then they install Signal, use it for a week, and drift back to whatever was convenient. The problem isn't awareness — it's friction.

When we built Shellfog, our encrypted messaging app, the core challenge wasn't cryptography. Libraries handle that. The challenge was making encryption feel like nothing at all. No key exchanges to manage, no warnings to dismiss, no modes to toggle. Just a conversation, protected by default.

This is where security and design intersect. A system that's secure but annoying to use will be abandoned. A system that's easy to use but insecure is worse. The only viable path is both — and getting there requires treating security as a UX problem, not just an engineering one.

The best security feature is one the user never notices. That's not a limitation. It's the entire point.