Quantum Computing Will Break AI Privacy — And Nobody in the Industry Is Ready

Every AI interaction you've ever had is potentially being collected right now — not to read today, but to decrypt later. This is the "harvest now, decrypt later" attack. Adversaries — nation-states, sophisticated criminal organizations, future competitors — are storing encrypted data flows from AI systems today, waiting for quantum computers powerful enough to break the encryption that protects them. When that threshold arrives, every AI conversation you had in 2024, 2025, 2026 becomes readable. Every prompt that contained sensitive business strategy, medical information, legal counsel, personal disclosure. All of it. The AI privacy community is largely not discussing this. The cryptography community has been sounding the alarm for years. The gap between these two conversations is where significant risk lives. The Cryptographic Foundations of AI Privacy Are Quantum-Vulnerable When you send a prompt to any major AI provider — OpenAI, Anthropic, Google, Mistral — the transmission is encr