// #long-term-security

Post-Quantum Cryptography: The Decision Is Not Whether to Migrate, It Is When to Start Counting

Proton Mail's post-quantum encryption launch is another data point in an accelerating migration across email, messaging, and enterprise security platforms. The industry debate has shifted from 'should we?' to 'how urgent is the harvest-now-decrypt-later threat?' For most organisations the answer is more urgent than their current roadmap reflects — because the data being generated today has a longer confidentiality requirement than the planning horizon that informs most security investment decisions.