'Harvest Now, Decrypt Later' Is on a 2027 Clock - Here's How to Beat It with QNSI

Evidence boundary: any present-tense QNSI product wording below describes source-declared contracts, architecture targets, or vendor-run artifacts-not independently observed production behavior. Conformance artifacts prove only their stated algorithm scope. End-to-end production execution is NOT VERIFIED.

Most organisations still treat post-quantum migration as a 2028 problem: no cryptographically relevant quantum computer exists, NIST only finalized the standards in August 2024, and the headline deadline - CNSA 2.0, January 2027 - feels far enough away. That reasoning fails on one specific point: harvest-now-decrypt-later does not wait for the quantum computer. Every byte of classically encrypted traffic a state-level adversary records today is a candidate for future decryption. If your data carries a 10-year confidentiality requirement and a CRQC is 8 years out, you are already two years late.

QNSI source defines inventory, key-management, crypto-agility, and evidence surfaces for evaluating this migration. End-to-end deployment execution across those surfaces remains NOT VERIFIED.

The threat model in one paragraph

Your traffic is encrypted with classical key agreement (X25519, ECDHE) today. An adversary records the ciphertext now. When a cryptographically relevant quantum computer arrives, Shor's algorithm recovers the session keys from the recorded handshakes and the bulk data decrypts retroactively - including records whose confidentiality obligations run past 2040. The clock runs on your data's confidentiality horizon, not on quantum hardware announcements.

January 2027 is when you must be done, not when you start

NSA's CNSA 2.0 mandates ML-KEM-1024 and ML-DSA-87 and requires PQC for new national-security systems from January 2027. The framing matters: 2027 is when PQC is required, not when migration begins - a supplier whose platform is not PQC-capable by late 2026 fails the authorization reviews that follow. The pressure propagates down the supply chain, which puts the practical deadline for many commercial vendors at mid-2026. And CNSA 2.0 is not alone:

• US EO 14412 (June 2026): PQC key establishment for federal High-Value Assets by 2030, digital signatures by 2031 - and CBOM minimum elements to be defined within 270 days.
• EU DORA (in force since January 2025): key-lifecycle policy, certificate registers and crypto-agility for financial entities.
• PCI DSS 4.0: cryptographic inventory and agility expectations that a CBOM answers directly.
• MAS TRM (January 2021) and Singapore PDPA: sound-cryptography and data-protection obligations that MAS-regulated institutions are expected to read against quantum risk.

The QNSI path: four moves before the deadline

QNSI is the platform layer of this migration delivered as a product - so your team spends the next year on the application-specific work nobody can do for you, not on rebuilding key management from scratch.

1. Inventory target: source-defined connector, classification, CycloneDX, and readiness-score contracts. Complete connector execution and deployment accuracy are NOT VERIFIED.
2. Key-management target: the source catalog contains 87 PQC algorithms (24 KEMs, 63 signatures), policy, rotation, BYOK, and conditional custody contracts. Complete runtime execution remains NOT VERIFIED.
3. Data-protection target: genuine PQC envelopes for Vault and Storage plus PQC-native transport. End-to-end execution remains NOT VERIFIED.
4. Evidence target: source-defined ML-DSA audit and framework-mapping contracts. Complete ingestion, pack provenance, and independent deployment verification remain NOT VERIFIED.

// pnpm add @heossihq/qnsi · pip install qnsi · cargo add qnsi · com.heossi:qnsi (JVM/Android)
import { QnsiClient } from "@heossihq/qnsi";

const qnsi = new QnsiClient({ apiKey: process.env.QNSI_API_KEY });
await qnsi.kms.createKey({ algorithm: "kyber-1024" });                      // ML-KEM-1024 - CNSA 2.0 KEM
await qnsi.kms.createKey({ algorithm: "dilithium-5", purpose: "signing" }); // ML-DSA-87 - CNSA 2.0 signature

The timeline that still works

If your platform has a 12-18 month lead time on cryptographic change, the calendar from mid-2026 looks like this - and every line maps to a QNSI surface rather than an internal build:

1. Now: run discovery - connect QNSI Crypto Inventory, land the CBOM and the readiness score.
2. Q3 2026: parallel deployment - hybrid TLS in transit, PQC keys minted in the QNSI KMS, secrets moving into the vault.
3. Q4 2026: migrate workloads under per-tenant crypto policy, stepping tiers as assurance requirements rise (default → strict → maximum → government).
4. Q1 2027: export the compliance evidence packs and walk into the audit with a signed chain, not a slide deck.

Starting now puts you on schedule. Starting in January 2027 puts you a year behind. Starting in 2028 means explaining to your federal and regulated customers why you missed the deadline that decided whether they could buy from you.

Start now

The clock does not restart, but you can. Create a Free Forever workspace at https://cloud.qnsi.heossi.com/auth?mode=signup, mint an API key at cloud.qnsi.heossi.com/api-keys, and make your first post-quantum call today. Developer plans start at $149/month; enterprise adds maximum and government crypto policy and HSM-rooted custody. Want the migration mapped to your estate? Talk to an architect at qnsi.heossi.com/contact.