IBM Quantum Safe: How to build your post-quantum migration plan

28th April 2026BlogAJ Thompson

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Getting started discover how to use IBM Quantum Safe for an encryption future migration plan

Grasping the quantum threat to encryption is one thing. Knowing where to kick-start your organisation’s migration to quantum-safe cryptography is another story altogether.” IBM Quantum Safe provides a methodical, tooled approach enabling organisations to move from discovery through to full cryptographic transformation — no quantum computing expertise required.

Step One: Discover — Understand what you are protecting

Cannot protect what you cannot see. A cryptographic inventory — a complete record of every single instance where your organisation uses encryption, what algorithms are in use and the data they protect — is the first step in any quantum-safe programme. IBM Quantum Safe Explorer has been created to do just that.

The Explorer maps your cryptographic usage across applications and infrastructure with static scanning and CI/CD pipeline integration. The result is a Cryptography Bill of Materials (CBOM) —a complete list of your cryptographic assets, akin to a software bill of materials (SBOM). This provides security teams with the visibility required to better understand their true exposure and start risk-based prioritisation.

Step Two: Observe — Track and prioritise risk

Discovery is a point-in-time event; cryptographic risk evolves. IBM Quantum Safe Advisor reintroduces continuous observability into your quantum-safe programme through of dynamic scanning, cryptographic posture management and AI-powered risk analysis.

The Advisor enables teams to track the cryptographic health of their environment over time, prioritising those with the most at-risk exposures, then making use of AI-based recommendations to drive decision-making. Instead of trying to solve through everything all at the same time — something that inundates most businesses — this risk-based method makes sure people and resources are focused on where it counts most.

Stage three: Transform — Remediate and build crypto-agility

After you have the image of your cryptographic landscape and a prioritised risk assessment in hand, the real work starts. IBM Quantum Safe Remediator advances the migration to post-quantum cryptographic standards, like NIST-approved quantum-safe algorithms for key encryption (for example, CRYSTALS-Kyber) as well as digital signatures (such as CRYSTALS-Dilithium and FALCON).

Crucially, the Remediator is architected to create crypto-agility in your systems — not just swap one set of algorithms for another. Crypto-agility is the ability to swap out cryptographic standards in your organisation without using a sledgehammer that might take years or decades with wholesale re-engineering and builds resilience not just against the quantum threat but also any future potential for a cryptographic weakness.

Actions you can take now to advance your quantum-safe cryptography roadmap

Referencing the IBM Quantum-Safe Readiness Index and key learnings from leading organisations, the following steps will provide any organisation with a meaningful head start:

  • Bring the discussion to the board level. Getting quantum safe is a strategic business risk, not an IT housekeeping exercise. The CISO must ensure they have easy access to the board and position this as a matter of business continuity and competitive positioning.
  • Hire a cryptographic discovery exercise. Generate your CBOM and understand current exposure using IBM Quantum Safe Explorer or equivalent tooling.
  • Consider the temporal value of your data. The risk is to data that should be kept secret for 10, 20 or even 25 years — thanks to harvest-now-decrypt-later attacks, those will be susceptible to quantum risk today. Prioritise its protection accordingly.
  • Establish a crypto-agility plan. Don’t merely migrate to post-quantum algorithms — enable future algorithm changeover at speed.
  • Involve your supply chain. Your security posture is only as good as the weakest supplier. Demand quantum-safe roadmaps from major vendors and partners.
  • Invest in talent. At twice the rate of average organisations, Quantum-Safe Champions prioritise new talent. Think of setting up your own internal quantum-safe centre of excellence.

The time to start is now

IBM’s Quantum-Safe roadmap (2022 through 2026 and beyond) — as well as the data maturation cycle of quantum-safe cryptography within organisations that began early in adopting this capability- has already begun to yield dividends in areas of broader operational resilience, agility and data security maturity. Quantum-Safe Champions are now reporting an overall level of resilience that is close to three times greater than their least-ready counterparts, not simply because they’ve solved a challenge of the future, but as it turns out, the discipline required in quantifying quantum-safe readiness makes organisations more adept at security in general.

“Similar to a marathon, you need to choose a pace that suits your business goals — and one that doesn’t leave you out of breath trying to catch up.”

IBM Quantum Safe offers the tools, expertise, and roadmap to help make that journey manageable. The quantum clock is ticking. A bit of preparation, and your organisation could be prepared.

Infographic showing the three-stage IBM Quantum Safe migration path — Discover, Observe and Prioritise, and Transform with Crypto-Agility — alongside three strategic actions for immediate readiness and a bar chart showing Quantum-Safe Champions achieve resilience levels nearly three times greater than laggards.

View the infographic here 

Frequently Asked Questions (FAQs): IBM Quantum Safe and post-quantum migration

Q: How does “harvest-now-decrypt-later” impact data security today?

This is not a future hypothetical; data is susceptible to quantum risk today because of “harvest-now-decrypt-later” attacks. Attackers are currently capturing encrypted data that has a long shelf life — such as information that must remain secret for 10 to 25 years — with the intent to decrypt it once quantum computers are sufficiently powerful. Consequently, organisations must prioritise the protection of high-value, long-term data immediately.

Q: What is the first step in building a quantum-safe roadmap?

The migration begins with Discovery, which focuses on gaining visibility into what needs protection. Since you cannot protect what you cannot see, organisations must create a cryptographic inventory — a complete record of every instance where encryption is used, the algorithms involved, and the data being protected. Tools like IBM Quantum Safe Explorer can automate this by generating a Cryptography Bill of Materials (CBOM), which allows for informed, risk-based prioritisation.

Q: How can organisations manage evolving cryptographic risks over time?

Organisations should move beyond a point-in-time discovery to continuous observability. Using tools like IBM Quantum Safe Advisor, teams can perform dynamic scanning and AI-powered risk analysis to track the cryptographic health of their environment over time. This approach allows businesses to focus their resources on the most at-risk exposures rather than becoming overwhelmed by trying to address every issue simultaneously.

Q; What is “crypto-agility” and why is it a core part of the transformation phase?

Crypto-agility is the ability to rapidly swap out cryptographic standards without requiring wholesale re-engineering of systems or infrastructure. It is a vital component of the remediation phase because it builds long-term resilience, allowing organisations to respond quickly not just to quantum threats but to any future cryptographic weaknesses that may be discovered. A successful plan focuses on enabling these changeovers at speed rather than treating migration as a one-time event.

Q; Which algorithms are considered quantum-safe for remediation?

The migration process involves moving to NIST-approved quantum-safe algorithms. Specific examples include CRYSTALS-Kyber for key encryption, and CRYSTALS-Dilithium and FALCON for digital signatures.

Q; How should a CISO approach quantum risk at the board level?

A CISO should position quantum-safe migration as a strategic business risk and a matter of business continuity rather than a routine IT exercise. The discussion should focus on competitive positioning and ensuring the organisation has a clear path forward to mitigate future threats to its data integrity. By framing it as a strategic necessity, the CISO can ensure the programme receives the board-level visibility and resources it requires.

Q: Why is supply chain involvement critical for quantum readiness?

An organisation’s security posture is only as good as its weakest supplier, making it essential to involve the entire supply chain in quantum-safe planning. Organisations should proactively demand quantum-safe roadmaps from major vendors and partners to ensure that third-party vulnerabilities do not compromise their own internal security efforts.

Q: What are the primary business benefits of becoming a “Quantum-Safe Champion”?

Organisations recognised as Quantum-Safe Champions report an overall level of resilience that is nearly three times greater than their less-prepared counterparts. This increased resilience extends beyond quantum threats specifically; the discipline required to quantify quantum-safe readiness — investing in talent, establishing a centre of excellence, and building crypto-agility — makes these organisations more adept at security in general.

Q: How long does a post-quantum migration actually take?

A full migration to quantum-safe cryptographic standards takes, on average, around 12 years — a figure drawn from IBM Institute for Business Value research across 565 executives in 15 countries and 13 industries. That timeline reflects the reality that cryptography is embedded across virtually every layer of the modern enterprise: applications, networks, infrastructure, APIs, and supply chains. This is not a patch; it is a programme. That is precisely why IBM frames the journey as a marathon rather than a sprint — organisations need to choose a pace that suits their business goals without losing sight of the destination. But the arithmetic is unforgiving. With a 12-year average transition timeline and compliance deadlines already on the horizon, organisations that have not yet started are falling further behind with every passing quarter. The time to begin is now.

Ready to build your quantum-safe roadmap? Download the guide

Quantum-Safe Champions, organisations that have prioritised cryptographic readiness, report overall resilience levels nearly three times greater than their least-ready counterparts. The discipline of getting quantum-safe makes organisations measurably better at security across the board.

The threat is not waiting. Data that must remain secret for the next 10 to 25 years is susceptible to harvest-now-decrypt-later attacks today. The time to act is now.

Download the full guide to learn how to build your cryptographic inventory, prioritise risk continuously, and migrate to post-quantum standards with a structured, step-by-step roadmap.

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Originally published: “The Quantum Clock is Ticking” Insights from IBM Institute for Business Value / GSMA May 2024 link 

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