Your encrypted data might already be compromised. You just don't know it yet. The attack is called "harvest now, decrypt later." Intelligence agencies and well-funded attackers are collecting encrypted traffic today, banking on quantum computers being able to break it tomorrow. If your data is encrypted with classical algorithms alone — RSA, ECDH, X25519 — that bet might pay off. This isn't theoretical. NIST spent eight years evaluating post-quantum algorithms and finalized its first standards in 2024. The message was clear: start migrating now, not when quantum computers arrive. We took that seriously. Metamorphic is a zero-knowledge encrypted habit tracker, and the data it protects — sobriety counters, mental health habits, fitness patterns — is the kind of data that stays sensitive for a lifetime. So we built metamorphic-crypto , an open-source Rust encryption library with hybrid post-quantum encryption, and it's running in production today. Why hybrid?…