
Every few months, a new headline appears claiming that quantum computing is closer to breaking today’s encryption than was expected. Some of these claims will prove valid, others won’t. But for business leaders, waiting for absolute certainty is no longer a viable strategy.
The issue is not whether a research paper stands up to peer review, the issue is that cryptographic risk has shifted from a distant technical curiosity to an enterprise-wide strategic concern.
Many organisations still view post-quantum readiness as an IT problem; that is a governance error.
Post‑quantum readiness must be considered an enterprise risk programme, not a technology upgrade. It touches:
- legal exposure and regulatory accountability
- contract performance and procurement due diligence
- customer trust and brand reputation
- supplier resilience and operational continuity
- long‑term data protection and strategic planning
Yet many leadership conversations still circle the same narrow question:
“When exactly will encryption become ‘crackable’?”
An understandable question, but also an incomplete one. A better question is:
“If cryptographic assumptions change faster than expected, how exposed are we, and how quickly can we adapt?”
Why the risk is already here
Quantum risk will not arrive on a single date marked “Q‑Day” - it accumulates over time. One of the most important concepts for leaders to understand is the “harvest now, decrypt later” model, in which attackers can steal encrypted data today and store it until quantum capabilities allow them to unlock it.
For long‑lived data, intellectual property, legal documents, healthcare records, financial information, strategic plans, this is a present‑day business issue, not a future one.
This risk is organisation‑wide because:
Preparation is cheaper than delay
A common misconception is that acting now means committing to expensive, immediate infrastructure replacement. In reality, delay is far more costly – whether through steep last‑minute remediation, increased procurement pressure, regulatory scrutiny, loss of customer confidence, or exposure of long‑lived data.
The first phase isn’t replacement; It’s discovery and prioritisation.
Organisations should be able to answer:
- Where is cryptography used across the business?
- Which algorithms and key lengths are currently in play?
- Which systems and data are most critical or longest‑lived?
- Where will third‑party dependencies create bottlenecks?
- What can be changed now, and what must be planned for later?
Businesses that begin discovery early gain optionality and a greater degree of control. Those who delay are likely to face compressed timelines, higher costs, and unnecessary disruption to their business operations.
Leadership signals matter
When approaching emerging risk, the two most common leadership mistakes are panic and dismissal. Neither is leadership. Leadership is acknowledging uncertainty while acting on what is already clear:
- Cryptographic assumptions are evolving
- Practical resource estimates are moving
- Data collected today can be decrypted later
- Migration timelines are long
- Supply‑chain dependencies are real
The military phrase “no plan survives first contact” applies here. We cannot predict the exact timeline, but by having a plan, we ensure the organisation can adapt as the technology and the standards evolve.
The strategic bottom line
Post‑quantum readiness is not an IT side project, it is an enterprise‑wide resilience programme that protects:
- revenue
- customer trust
- regulatory posture
- supplier integrity
- operational continuity
- and ultimately, your freedom to operate
The businesses that act early will look prudent. The businesses that wait for certainty may find that certainty arrives only as pressure – financial, regulatory, contractual, and reputational.
Quantum computing is not tomorrow’s problem; it is today’s preparation. And preparation is the one advantage every organisation can control.
How can Willis help?
Early preparation buys control
Preparing for a post‑quantum world doesn’t require armies of technical experts. What it requires is structured, cross‑functional understanding.
For that reason, Willis have developed a streamlined suite of Post‑Quantum Readiness services designed to support organisations including:
- Executive PQR Awareness & Training
- Post‑Quantum Risk Readiness Assessment
- Post‑Quantum Company Charter
Please contact us to discuss how we can support you further in relation to your post-quantum risk readiness planning.





