Quantum Safe Tech: Shaping Up for Tomorrow’s Encryption Challenges Today

Until recently, traditional encryption was largely immune to attacks mounted using standard computing power. However, this has changed with the advent of quantum computing, a technology so fast that it may take just a few minutes to crack encryption that would keep conventional computers busy for millennia. And this understandably raises major data-protection concerns.

Small wonder, then, that post-quantum cryptography was among my main tech trends for 2025 and has also been highlighted CIO as one of the most underhyped technologies in IT. This month, we’ll take a closer look at how quantum-safe technologies counter the threats posed by quantum computing – and how organizations can shape up for the associated challenges.

Understanding Quantum-Safe Technologies

Designed specifically to withstand attacks from quantum computers, quantum-safe technologies consist of the following key elements:

• Post-quantum cryptography (PQC)

• Quantum key distribution (QKD)

• Hybrid cryptographic approaches

  
  

PQC is essentially an update to the existing encryption toolkit. It’s built on classic cryptographic algorithms involving complex math problems that even today’s quantum computers can’t easily solve. And because businesses don’t need to have quantum computers to use PQC, it’s the tech that’s most commonly used to defend against quantum attacks.

By contrast, QKD leverages the principles of quantum physics to share encryption keys securely. This calls for special hardware – such as photon-based communication links. Finally, as their name suggests, hybrid cryptographic approaches combine conventional and post-quantum techniques, leveraging the speed of symmetric encryption as well as the security of asymmetric encryption.

The Time for Action is Now

It’s important to realize that quantum tech poses an imminent threat calling for swift and decisive action. In light of ongoing developments, Gartner predicts that traditional cryptography will no longer be safe by 2029 and will be fully breakable by 2034 – and recommends rapid adoption of post-quantum cryptography to safeguard against quantum-powered attacks.

Multiple reports by tech companies and public bodies stress the need to transition to a quantum-safe technology landscape, underscoring the importance of acting sooner rather than later. While organization-wide deployment of quantum-safe encryption takes 5 to 10 years, some experts are predicting a risk of encryption-breaking capabilities in as soon as 8 to 10 years​.

Implementing a Quantum-Safe Strategy Framework

So, what should businesses do to safeguard their sensitive encrypted information against quantum attacks? There are five main steps in establishing an effective strategy for quantum resistance. First, you need to assess your current cryptographic landscape. At this stage, the aim is to identify the infrastructure of any systems that use vulnerable encryption and long-lived confidential data.

Next, prioritize the assets identified in the initial assessment in terms of risk and time-sensitivity. Here, the rule is that high-value assets with long lifecycles should be given highest priority. Then, go on to pilot post-quantum and hybrid cryptographic solutions to determine which better meets your particular needs.

In the penultimate step, prepare for upcoming challenges by building crypto-agility into your architecture. And finally, engage by aligning your quantum-safe encryption ecosystem with the requirements of regulators and offerings of vendors.

Crypto-Agility: the Key to Long-Term Security

An Accenture research report has highlighted the central role of crypto-agility in preparing for post-quantum decryption. In fact, many now believe that agility in cryptography is becoming as important as cryptography itself.

Since cryptography doesn’t stand still, no quantum-resistant solution can hope to offer long-term security. That’s why it’s essential to build agile IT systems that enable you to replace encryption algorithms with minimal disruption to ongoing operations.

With crypto-agility, businesses remain resilient by simply updating their algorithms, eliminating the need to replace entire systems. To become crypto-agile, you should first take an inventory of where and how encryption is used across your applications, networks, and products and ensure that the enterprise architecture supports rapid changes to cryptography.

Quantum-Safe Tech in Mergers and Acquisitions

The threat to encryption from quantum computing creates new risks and cybersecurity standards, introducing new dimensions to due diligence for mergers and acquisitions (M&A). When considering an acquisition, companies now have to take into account factors and associated questions including the following:

• Cryptographic resilience: How vulnerable and crypto-agile are the target’s encryption protocols?

• Data sensitivity and shelf life: What level of data protection is needed – now and over the next decade or more?

• Compliance exposure: Could future regulations entail significant upgrades to encryption solutions or bring fines for non-compliance?

  
  

The Road Ahead: Turning Risks into Opportunities

The threat of quantum attacks makes it imperative for organizations to act now – by evaluating their cryptographic exposure, building crypto-agility, and embedding assessments of quantum-safety in their due diligence efforts.

This threat is also prompting changes in policy and the regulatory landscape, with European and international bodies funding quantum-safe research. In addition, the relevant authorities may soon require new encryption standards (such as NIST in the US) for critical industries.

At present, we’re still in the early stages of the crypto-agility transition phase, which, according to Gartner, spans the years from 2024 to 2027. At this stage, organizations must make an inventory of their cryptographic assets, gauge their vulnerabilities, and adopt quantum-resistant methods. This will provide a solid foundation for establishing quantum resistance and crypto-agility going forward.

Interested in Learning More?

If you’d like to find out more about quantum-safe systems and their importance in safeguarding sensitive information, please reach out to me. And if you want to share your experience and insights into the tech, you’re welcome to leave a comment below.