Quantum Risk Is Already Here: A Provider's Guide to Demonstrating Third-Party Cryptographic Readiness Before Q-Day, Part 2: Assessment Framework and Deployment Guide

This IDC Market Perspective delivers the complete 48-question Third-Party Quantum Encryption Readiness Assessment Framework across 11 domains, with tiered deployment guidance scaled from five baseline questions for commodity vendors to all 48 for critical Tier 1 relationships, full evidence collection methods, and practical program management guidance, including crypto-agility architecture, Continuous Quantum Control Assurance (Q-CCA), and the Quantum Risk Operations Center (Q-ROC) capability model. It is Part 2 of a two-part IDC Market Perspective series. Providers should read Part 1 for the strategic and threat context before deploying this framework. The window to differentiate on evidence quality is open now, and will narrow as the market matures. The quantum threat to enterprise data security is not a future risk, it is a present and compounding one. Harvest-now-decrypt-later (HNDL) attacks are collecting encrypted data today for retroactive decryption. Trust-now-forge-later (TNFL) attacks are harvesting signed artifacts today for retroactive provenance forgery. With NIST finalizing three PQC standards in August 2024, CISA issuing federal procurement guidance in January 2026, and NIST IR 8547 proposing to deprecate quantum-vulnerable asymmetric algorithms after 2030 and disallow them after 2035, the regulatory and standards landscape has reached a decisive inflection point, one that converts every migration road map question from a matter of opinion into a matter of alignment."The 48-question framework in this document is not an endpoint; it is a starting line. The providers who will win in quantum-security-sensitive procurement cycles are not those who answer these questions adequately, but those who build the continuous assurance infrastructure behind the answers: automated evidence, runtime posture visibility, and crypto-agility architecture that treats algorithm replacement as a routine operational capability rather than a multiyear crisis response. Q-Day is not a risk event. The risk event is the moment your customer asks, and you cannot answer," says Philip D. Harris, CISSP, CCSK, research vice president, Governance, Risk, and Compliance Solutions, IDC.