Post-quantum cryptography (PQC) is getting a lot of attention in 2026, and for good reason. The quantum threat to widely deployed cryptographic systems is real, regulatory deadlines are active, and organizations that have not started migration planning are already working against a compressed timeline.
But not every claim about quantum risk reflects the full technical picture. Inside the growing PQC market, a specific pattern has emerged where genuine research is stripped of its technical context, timelines are inflated, and compliance pressure is used to sell products that do not address the actual infrastructure problem.
This pattern is what the industry calls FUD, which stands for Fear, Uncertainty, and Doubt, applied specifically to quantum computing. We call it Q-FUD. Organizations that act on Q-FUD end up spending money on the wrong things: proprietary algorithms with no established security foundation, bolt-on products that leave the real cryptographic gap untouched, and purchasing decisions driven by manufactured pressure rather than verified deadlines.
This blog separates what is real from what is noise. It explains what Q-FUD looks like, why it is spreading in 2026, what the genuine threat picture is, based on verified sources, and what practical steps security teams can take to make sure their migration programs are pointed at the right targets.
Identifying Q-FUD
Q-FUD shows up in three consistent patterns. Once you know them, they are not hard to recognize. And those patterns are:
Unnamed Authority
This appears when a vendor references unnamed intelligence sources, classified government briefings, or insider contacts whose guidance never appears in any public agency document. NIST, NSA, and CISA all publish their recommendations openly. If a vendor claims access to non-public threat intelligence that contradicts or goes beyond what these agencies say publicly, the right response is to ask for the primary source before making any decision.
Research Cited Without Context
Real peer-reviewed papers are used as sales material with the engineering constraints removed. A paper showing that a quantum circuit requires fewer qubits than a previous estimate does not mean RSA-2048 is breakable today. For instance, when Google released its Willow chip in late 2024, headlines across the industry declared Bitcoin was finished. Google publicly stated that the chip is incapable of breaking modern cryptography. The research was accurate. The conclusions circulating in the market were not.
Proprietary Algorithms
For most enterprises, the NIST standardization process currently provides the strongest publicly vetted basis for deployment decisions. NIST ran an eight-year global competition, evaluated dozens of candidates under intense cryptanalytic scrutiny, and in August 2024 finalized three primary standards: ML-KEM (FIPS 203) for key encapsulation, ML-DSA (FIPS 204) for digital signatures, and SLH-DSA (FIPS 205), a stateless hash-based signature scheme that complements ML-DSA with distinct security assumptions.
A fourth standard, FN-DSA (FIPS 206), based on the Falcon algorithm, has been submitted by NIST as an Initial Public Draft (IPD) and is currently in active public review, with the final standard expected in late 2026 or early 2027. It is intended for use cases requiring compact signatures.
HQC was additionally selected in March 2025 as a backup KEM alongside ML-KEM, with a draft standard expected for public comment within a year and finalization targeted for 2027 (it has not yet been finalized). A proprietary algorithm that has not gone through NIST’s open public standardization process, which involves multi-year cryptanalysis and peer review has no established security foundation. Deploying one does not reduce quantum risk. It adds a different and harder-to-quantify risk alongside it.
Understanding these patterns helps you evaluate what you are being offered. Now let us look at what is driving them.
Why Q-FUD Is Getting Louder
Quantum threat headlines appear constantly in 2026, and not all of them are grounded in what the research actually says. Some strip the engineering constraints out of real papers and present worst-case numbers as if they describe today’s reality. Others are vendor press releases written to look like scientific findings.
The risk this creates for security leaders is not that the threat is overstated. The threat is real, the research is credible, and the regulatory deadlines are binding. The risk is that noise-driven urgency replaces structured planning. Organizations rush to purchase tools before they have completed a basic cryptographic inventory, which is the one step that has to come first regardless of what any headline says.
The practical answer is straightforward. Know what the research actually says. Know which deadlines apply to your organization. Build your migration plan around your real cryptographic exposure, not around the most alarming number you read this week in a random, non-credible article. That approach moves faster in the long run, because it builds on a foundation that holds.
What the Real Quantum Threat Looks Like
When Q-FUD is filtered out, the threats that remain are specific, measurable, and easier to act on.
| Threat | Status | Urgency | Standard Algorithms to Use |
|---|---|---|---|
| Shor’s algorithm breaking RSA and ECC | Real, timelines compressing | High: begin migration now | ML-KEM (FIPS 203), ML-DSA (FIPS 204) |
| Harvest Now, Decrypt Later (HNDL) | Active, according to a Federal Reserve Finance and Economics Discussion Series working paper (FEDS 2025-093, September 2025) | Immediate for long-lived data | ML-KEM (FIPS 203) for key exchange |
| Grover’s algorithm affecting AES | Theoretically real, engineering-constrained | Lower: AES-128 practically secure, near-term | Organizations already refreshing cryptographic infrastructure should generally prefer AES-256 for long-term deployments. |
| Proprietary quantum-safe algorithms | A vendor risk, not a quantum solution | Avoid entirely | NIST-standardized algorithms only |
Shor’s algorithm is the genuine near-term concern. It efficiently solves the hard mathematical problems that RSA, ECDH, and ECDSA depend on. A quantum computer running Shor’s algorithm does not weaken these systems. It breaks them completely. Recent advances in quantum error correction and hardware have increased confidence that cryptographically relevant quantum computers are achievable, although credible forecasts still vary considerably.
HNDL is what makes that compressed timeline matter right now, not in a future scenario. Adversaries are already collecting encrypted traffic with the plan to decrypt it once quantum capability arrives. If your organization holds data that needs to remain confidential for ten or more years, this threat is relevant today.
Grover’s Algorithm and AES receive far more attention than the evidence supports. The quadratic speedup Grover provides is mathematically real. But turning it into a practical attack requires enormous fault-tolerant quantum hardware, derives less benefit from parallelization than classical brute force does, and depends on a full reversible quantum implementation of AES that is very expensive to run. AES-256 is a sensible upgrade when the cost of switching is low, but it is not the critical post-quantum priority.
CNSA 2.0 establishes phased deadlines by product category. From January 1, 2027, all new NSS acquisitions must support CNSA 2.0 algorithms. By December 31, 2030, all equipment and services that cannot support CNSA 2.0 must be phased out, including VPNs, routers, and networking infrastructure. By December 31, 2031, CNSA 2.0 algorithm use is mandatory across covered systems unless a specific exception applies. Operating systems, cloud services, and custom applications follow with an exclusive-use deadline of 2033.
All US National Security Systems must be fully quantum-resistant by 2035, in alignment with NSM-10.
The work that genuinely reduces risk is migrating quantum vulnerable algorithm to NIST-standardized algorithms, building crypto-agility so future algorithm changes are planned events rather than emergency responses, and starting with a cryptographic inventory so you know exactly what you are working with. With that foundation in place, building an accurate and actionable migration program becomes a defined, sequential process.
Three Practical Steps To Stay on Track
The CISA, NIST, and NSA joint guidance Quantum-Readiness: Migration to Post-Quantum Cryptography, developed with the NIST NCCoE, organizes migration work around cryptographic discovery, risk-based prioritization, and algorithm adoption. That structure provides a useful, practical foundation. Here is what it looks like:
1. Know what you have: Start with a complete cryptographic inventory. Map every certificate, key, algorithm, and protocol in use across your environment. This is the foundation of every credible migration program. Without it, you are allocating budget and effort based on assumptions rather than facts. You cannot prioritize what you have not mapped.
2. Sequence migration by actual risk: RSA and ECC-dependent systems handling data with long confidentiality requirements carry the highest HNDL exposure and face the most direct threat from Shor’s algorithm. Certificate authorities, key exchange infrastructure, and code-signing systems carry the highest consequence if compromised. Prioritize those. AES-based symmetric encryption is a secondary concern and should not absorb migration resources ahead of public-key infrastructure.
3. Use only NIST-standardized algorithms: ML-KEM (FIPS 203), ML-DSA (FIPS 204), and SLH-DSA (FIPS 205) went through eight years of global cryptanalytic review. No proprietary algorithm has been through that process. Build your migration around these standards. During the transition period, hybrid deployments running a classical algorithm alongside ML-KEM or ML-DSA simultaneously are the approach recommended by NSA, NIST, Germany’s BSI, and France’s ANSSI.
A hybrid scheme keeps classical protection in place while PQC algorithms accumulate operational track record, and the classical component can retired once the PQC algorithm has sufficient operational history and compliance timelines require it. Ensure crypto-agility is built into every new system from the start so that dropping the classical components, or swapping algorithms entirely, can be done without re-architecting the platform.
Understanding what needs to be done is only the first step. The larger challenge is translating that understanding into a structured migration program that aligns technical priorities, regulatory timelines, and operational constraints across the organization.
How Encryption Consulting Can Help
If you are wondering where and how to begin your post-quantum journey, Encryption Consulting is here to support you through our PQC Advisory Services. You can count on us as your trusted partner, and we will guide you through every step with clarity, confidence, and real-world expertise.
We begin with a Cryptographic Discovery and Inventory, scanning your entire environment to identify certificates, keys, algorithms, and protocols across endpoints, applications, APIs, and infrastructure. This builds the baseline you need before any migration can begin.
From there, we conduct a PQC Assessment to evaluate your exposure to quantum threats, identify RSA- and ECC-dependent systems, and deliver a prioritized report of vulnerable assets with risk severity ratings.
With that clarity, we develop a PQC Strategy and Roadmap, a phased migration plan aligned to your risk appetite, regulatory requirements, and long-term security goals, including cryptographic agility so your systems can adapt as standards evolve.
We then support Vendor Evaluation and Pilot Testing, helping you select the right tools, run proof-of-concept tests, and validate interoperability before any full-scale rollout.
Finally, we manage Full Implementation, deploying hybrid classical and quantum-safe models, rolling out PQC across your PKI and infrastructure, and setting up monitoring for long-term cryptographic health.
CBOM Secure
CBOM Secure Encryption Consulting’s CBOM Secure gives security teams a centralized, continuously updated view of every cryptographic algorithm, library version, and certificate across the organization. It identifies which systems carry quantum-vulnerable algorithms, tracks migration progress in real time, and surfaces misalignments before they become compliance gaps. For organizations trying to separate what genuinely needs migrating from what a vendor claims needs migrating, CBOM Secure provides the factual baseline to make that distinction clearly.
If your organization is ready to build a PQC migration program on evidence rather than noise, you can contact us.
Conclusion
The quantum threat is real, the regulatory deadlines are binding, and the migration window is shorter than most organizations have planned for. NIST, NSA, and CISA have published clear guidance: inventory your cryptographic assets, prioritize RSA and ECC systems carrying long-lived data, deploy ML-KEM for key encapsulation and ML-DSA for signatures, and build crypto-agility from the start. Use hybrid deployments during the transition. Measure progress against CNSA 2.0 and NIST IR 8547 Initial draft, not against vendor-defined milestones.
What Q-FUD adds is cost without protection. Proprietary algorithms, inflated timelines, and misrepresented research drive spending that does not close the underlying exposure. Organizations that act on evidence rather than noise move faster, spend less, and arrive at compliance with infrastructure that holds. That is the work Encryption Consulting is built to support.
