Preparing for Quantum Threats

Quantum computing isn’t science fiction—it’s a looming security shift. When we talk about “preparing for quantum threats”, what we’re really saying is: this isn’t a future-maybe issue, it’s a real-world planning item for your business.

At AffinityMSP we often talk to medium and large enterprises about staying ahead of the curve. And the arrival of quantum computing means your cyber security strategy needs to evolve.

What is this “quantum threat”?

Picture the locks and keys protecting your business data today. They rely on hard maths problems that classical computers can’t solve in any practical time. But a quantum computer uses qubits, superposition and entanglement to handle massive calculations. These aren’t tools for everyday spreadsheets—they’re game-changers.

Now imagine those locks being picked by someone with a super-tool. That’s the essence of the quantum threat: current encryption methods could become vulnerable.

Why the urgency around preparing for quantum threats?

• “Harvest now, decrypt later” is real. Attackers can collect encrypted data today, store it, then decrypt once quantum computers can crack current algorithms.

• Standards bodies and governments agree: The clock is ticking. For example, national guidance warns that widespread threats may arrive by around 2035.

• Encryption is the backbone of digital trust: from your website certificates, to cloud services, to secure communications. If that fails, you risk operational disruption, compliance failures or worst-case a breach of sensitive data.

• It’s not just a “one-day” event. Transitioning to quantum-safe systems takes years. Planning now is far less costly than scrambling later.

Making sense of “quantum safe” or “post-quantum”

If the current locks may fail, what do you replace them with? That’s the role of post-quantum cryptography (PQC) and quantum-safe practices. The idea is to use math problems that even a quantum computer can’t easily solve—or use key distribution methods that detect tampering (like quantum key distribution).

In simpler terms:

• Think of moving from a padlock to one made of unbreakable steel.

• Or adopting a lock system that alerts you when someone tries to pick it.

• But you have to install the steel now—not wait until you hear a loud crack.

What business owners (even non-IT) should know

You don’t need to become a quantum physicist. But you do need awareness and action. Here are practical points:

1. Know where your encryption is used

Every part of your business that uses “secure communications” or “private data” may be using cryptography. That could include:

• Website / customer portals

• Employee tools and remote access

• Archived sensitive data (financial records, IP, legal documents)

• Cloud & SaaS applications

2. Ask your IT team or provider: “Are we quantum-ready?”

Key questions:

• Are we monitoring quantum-safe standards and migration plans?

• Do we have a roadmap to move to quantum-resistant encryption?

• Are we crypto-agile (i.e., able to change algorithms easily when needed)?

• Where is our data at risk of being “harvested now, decrypted later”?

3. Prioritise based on risk & data lifespan

Not all data needs the same priority. For instance:

• Data you expect to keep confidential for 10-20 years (e.g., IP, legal contracts, medical records) should be high priority.

• Systems that are short-life or change frequently may be lower priority—but still not ignored.
  According to research, quantum-weak encryption could impact the foundations of online security by 2035.

4. Partner with providers who understand quantum risk

Working with an MSP who is proactively preparing for this gives you an advantage. At AffinityMSP we’re committed to keeping up with emerging threats so your focus remains on business growth, not encryption panic.

The advantage of early preparation

• Stand out in your industry: Most businesses are still reactive. Being ahead means you’re more trusted.

• Avoid migration shock: Transitioning later under pressure will cost more—both in budget and disruption.

• Protect your future business value: Data breaches undermine trust, compliance and reputation. Quantum-vulnerable data is a ticking liability.

• Sleep easier: When you’ve assessed, planned and executed, you know you’re not leaving the locks to chance.

How AffinityMSP can help

We specialise in managed IT services, cybersecurity and future-proofing your technology. Here’s how we support you in preparing for quantum threats:

• Conduct an encryption inventory: Identify where sensitive data lives, how it’s encrypted, and what the risks are.

• Develop a quantum-readiness roadmap: Prioritise systems, set timelines, and plan algorithm or infrastructure upgrades.

• Ensure crypto-agility: So when standards change (they will), your systems can adapt.

• Provide ongoing monitoring & guidance: We keep you informed about standards, threats and practical steps.

Ready to future-proof your business? Reach out for a consultation with AffinityMSP to see how we can help you stay ahead of quantum threats and maintain your security posture.