Two-thirds of companies consider quantum computing a critical cybersecurity threat in 3-5 years

A new Capgemini Research Institute report highlights the growing threat of quantum computing, with two-thirds of companies considering it the most critical cybersecurity threat in the next 3-5 years. Six "early adopters" of quantum-resistant technologies predict the "Q-day," when current encryption algorithms can be broken, will arrive in 5-10 years. The report emphasizes the need for organizations to adopt post-quantum cryptography to ensure continuity, regulatory compliance, and long-term trust.

As quantum computing capabilities advance, traditional encryption methods face an imminent threat. The Capgemini Research Institute recently highlighted this growing concern, with two-thirds of companies considering quantum computing the most critical cybersecurity threat in the next 3-5 years [1]. The report underscores the need for organizations to adopt post-quantum cryptography (PQC) to ensure continuity, regulatory compliance, and long-term trust.

According to the report, six "early adopters" of quantum-resistant technologies predict the "Q-day," when current encryption algorithms can be broken, will arrive in 5-10 years. This looming deadline underscores the urgency for businesses to transition to quantum-safe solutions.

The Forbes Technology Council identifies several promising PQC approaches. Cryptographic Bills of Materials (CBOMs) inventory all cryptographic components within an organization’s systems, guiding efficient migration to quantum-safe alternatives [2]. The Leighton-Micali Signature (LMS) is a robust choice for code signing, ensuring authenticity and integrity [2]. The ML-KEM (Kyber) protocol, with a 40% adoption rate, offers substantial immunity to "record now, decrypt later" attacks [2].

Crypto-agility, the ability to swap cryptographic primitives without rewriting infrastructure, is also highlighted as a critical solution [2]. CRYSTALS-Kyber, a top contender in post-quantum encryption, is already being tested by tech giants like Google in Chrome [2]. Lattice-based cryptography and code-based cryptography, such as the McEliece cryptosystem, are also prominent solutions [2].

The release of OpenSSL 3.5, which supports all three current NIST-standardized PQC algorithms, makes PQC more tangible and easier to implement [2]. Blockchain paired with post-quantum encryption shows real promise in securing future digital ecosystems [2].

SuperQ Quantum Computing Inc., formerly Atco Mining Inc., will commence trading on the Canadian Securities Exchange under the symbol "QBTQ" on July 10, 2025 [3]. The company's platform, Super, aims to remove the technical barrier for organizations to practically use quantum computing.

Organizations must act swiftly to prepare for the quantum-resilient future. Post-quantum cryptography is no longer a distant concern but an urgent necessity to safeguard data integrity and ensure long-term security.

References:

[1] Capgemini Research Institute. (2025). The Growing Threat of Quantum Computing: Preparing for the Quantum-Resilient Future. Retrieved from https://www.capgemini.com/research/the-growing-threat-of-quantum-computing-preparing-for-the-quantum-resilient-future/
[2] Forbes Technology Council. (2025). Promising Post-Quantum Cryptography Solutions According to Experts. Retrieved from https://www.forbes.com/councils/forbestechcouncil/2025/07/03/promising-post-quantum-cryptography-solutions-according-to-experts/
[3] TheNewswire. (2025). SuperQ Quantum Computing Inc. Commences Trading on July 10, 2025. Retrieved from https://www.tradingview.com/news/reuters.com,2025-07-09:newsml_Tnw4tNpF9:0-superq-quantum-computing-inc-to-commence-trading-on-july-10-2025-under-the-symbol-qbtq/