Crypto you can change: getting ready for post-quantum without a rewrite

Someone can copy your encrypted data today and read it the day quantum computers arrive. That's not a distant problem. Attackers are already storing encrypted traffic now, betting they'll be able to crack it later. The obvious fix, swapping RSA for a quantum-safe algorithm, is a trap: some of the leading candidates have already been broken, and the standards bodies are still changing their recommendations. Chasing the "right" algorithm is a losing game. The real goal is agility: building systems where you can change your encryption through a config edit instead of a rewrite. This talk shows how, using patterns like envelope encryption to keep the algorithm swappable, and confronts the hard part honestly: crypto is usually woven deep into systems that already exist. You'll leave knowing how to assess your exposure and make your encryption something you can actually change.