Securing Against Quantum Risks: Future-Proof Your Cybersecurity

How to secure your organization against emerging quantum risks

With intricate supply chains and new regulatory pressures, integrating robust cybersecurity measures is essential for sustaining innovation and protection.


In brief:

  • Quantum computing poses a significant risk to traditional encryption methods, threatening sensitive data security.
  • Organizations must act swiftly to adopt quantum-safe cryptographic solutions to mitigate future risks.
  • EY offers comprehensive assessments and transformation programs to help businesses transition to a quantum-safe future.

Quantum computing is a revolutionary technology that leverages the principles of quantum mechanics. Unlike classical computers, which operate using bits (0 or 1), quantum computers utilize qubits. These qubits can exist in multiple states simultaneously, allowing them to perform some complex calculations much faster than their classical counterparts.

The risk to traditional encryption

The rise of quantum computing poses a direct risk to traditional encryption methods. Many current cryptographic algorithms, such as RSA and ECC, rely on complex mathematical problems that quantum computers could soon solve rather quickly. This means that sensitive data, such as personal information, financial records, and intellectual property, will be vulnerable to cybercriminals equipped with quantum technology.

Example of a current threat

Recently, a serious incident occurred in which personal data from the population screening program (Bevolkingsonderzoek) in The Netherlands was leaked, causing significant societal impact. While the investigation was ongoing, it raised an important question: even if the data was encrypted, would that have truly prevented future harm?

Imagine a cybercriminal gaining access to encrypted data collected through a data breach. This data may seem secure now, as it is encrypted, but with the advent of quantum computers, it could be decrypted in the future. This phenomenon is known as “harvest now, decrypt later” or “store now, decrypt later”. Several organizations, including the Dutch NCSC (National Cyber Security Centrum), have already issued warnings about this threat.

Why you need to act now

Quantum computers are developing rapidly

Organizations must act swiftly to strengthen their cybersecurity measures against these emerging challenges. The time to act is now, as quantum computers are already exist, and the first commercial applications are not far off. It is crucial to adopt a proactive approach. Cryptography migration is a complex activity that takes time and effort. Planning early avoids rushed, insecure deployment, as well as providing the opportunity to leverage ongoing technology transformation activities. Organizations may see the risk of quantum as an opportunity to get their cyber fundamentals in order. Within the quantum context, organizations should (as a minimum) inventory their sensitive data, identify the encryption algorithms currently in use and assess which of these can be (and must be) replaced in the short term with stronger, quantum-safe alternatives.

The dangers of inaction

Not addressing the risk of quantum computing poses significant medium- and long-term risks to your organization. As mentioned, data that is currently being collected may be decrypted in the future. Therefore, it is important to develop a strategy as soon as possible that not only addresses future risks, but also addresses current threats

Our solution

At EY, we recognize the urgency of this situation and have developed various solutions to the aforementioned problems. Also, in addition to being a member of the IBM Quantum Network, as well as collaborating with IBM on AI and hybrid cloud, EY can also work with IBM to offer organizations support in their transition to a quantum-safe future. Ultimately, our services are designed to help businesses develop resilient cyber strategies to navigate the risks posed by the evolution of quantum computing.

Solution 1: Quantum-Safe Readiness Assessment

Our assessment provides a comprehensive evaluation of your current security posture against quantum risk. This includes:

  • Assessment of your current security posture: We evaluate your existing cyber security measures and identify vulnerabilities that may be exposed by quantum computers.
    Evaluation of infrastructure and technologies: We analyse your current infrastructure and technologies to determine their suitability for the transition to quantum-safe cryptography.
  • Risk-based readiness score: You will receive a score indicating your current readiness, along with an action plan to enhance your security.

Solution 2: Quantum-Safe Transformation Program

Our program is designed to assist organizations in migrating to quantum-safe cryptography. This includes:

  • Development of a roadmap: We help you create a roadmap for implementing quantum-safe cryptographic solutions.
  • Selection of PQC solutions: We guide you in choosing the right cryptographic solutions that are resilient against quantum risks.
  • Training of personnel: We provide training for your staff to prepare them for new post-quantum cryptographic standards and processes.

Solution 3: Quantum Compliance Model

With our governance model, we assist organizations in establishing policies and frameworks for post-quantum compliance. This includes:

  • Establishment of policies and frameworks: We help you develop policies/frameworks that meet the requirements for post-quantum compliance.
  • Determination of ongoing requirements: We identify the requirements for regulatory compliance and ensure that your organization meets these standards.
  • Implementation of continuous monitoring: We implement monitoring tools to ensure that your organization remains compliant with quantum-safe security standards.

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Summary

Quantum computing is about to impact the landscape of cybersecurity. Traditional encryption methods to secure sensitive data and communications are at risk of being compromised by the capabilities of quantum computers, which can solve the complex mathematical problems that underpin legacy cryptography at unprecedented speeds. This article explores the implications of quantum computing for cybersecurity, the urgent need for organizations to act, and how EY’s expert services can help businesses transition to a quantum-safe future through Post-Quantum Cryptographic (PQC) solutions.

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