Harvest Now, Decrypt Later

Attack model in which adversaries record encrypted traffic today to decrypt once quantum computers mature — the reason migration cannot wait.

Core Principles & Analysis

• Any secret that must stay secret for decades is already at risk, quantum computer or not.
• Drives government migration deadlines like NSA's CNSA 2.0 timeline targeting 2030–2033.
• Explains why browsers shipped hybrid post-quantum key exchange years before any quantum threat exists.

Specifications & Metrics

• TYPE: Attack model
• STATUS: Active threat
• YEAR: Ongoing