Quantum Computing Threats: A Natural Evolution, Not a Cliff Edge
Quantum computing security threats are often described in extreme terms: either an imminent cybersecurity catastrophe or a distant issue that businesses can safely ignore. The reality is more measured. Quantum computers are highly specialized systems that use quantum physics to solve certain complex problems more efficiently than traditional computers. While they could eventually break widely used public-key encryption, quantum computers will not replace conventional servers overnight or instantly compromise every encryption protocol on the internet.
Instead, quantum computing will gradually reshape the cybersecurity landscape, much like previous cryptographic migrations over the past 30 years. Organizations that begin preparing now can manage the transition through structured modernization, risk assessment, and the adoption of post-quantum cryptography (PQC).
In the second half of 2024, the Global Risk Institute, a Toronto-based financial services think tank, surveyed 32 quantum computing experts about when a quantum computer might be capable of breaking a 2048-bit RSA key within 24 hours. Based on the average of optimistic and pessimistic estimates, experts placed the probability of reaching this milestone at 50% by 2040.
Although this timeline remains uncertain, it is measurable and provides organizations with time to plan rather than react to an emergency. In the near term, businesses should prioritize the “harvest now, decrypt later” threat. In this scenario, attackers collect encrypted data today and store it until sufficiently powerful quantum computers become available to decrypt it. This risk is especially important for sensitive information that must remain confidential for more than 10 years.
For most companies, the quantum cybersecurity threat is manageable when addressed through a systematic cryptographic inventory, lifecycle planning, and gradual technology modernization.
Government Guidance Provides a Roadmap for Quantum-Safe Security
The U.S. government has issued new requirements for National Security Systems (NSS), which are expected to be among the earliest targets for quantum-enabled attacks. Beginning in January 2027, new NSS acquisitions must support the Commercial National Security Algorithm Suite 2.0 (CNSA 2.0), including the post-quantum cryptography requirements established by the U.S. National Institute of Standards and Technology (NIST) and selected by the National Security Agency. The updated systems are expected to be implemented by 2031, with some exceptions, and the government has set a goal of achieving 100% adoption by 2035.
These deadlines are not mandatory for commercial organizations, but they provide valuable guidance. They indicate the direction of government agencies, technology vendors, standards organizations, and auditors. Businesses can use this roadmap to evaluate their own quantum risk, set appropriate security objectives, and establish realistic investment timelines without copying government schedules exactly.
Intel’s Role in Building Infrastructure for Quantum-Safe Migration
Intel is helping support the transition to quantum-resistant security through features across its processor and platform portfolio. Rather than being limited to a long-term product roadmap, several of these capabilities are already available in shipping technologies and can help organizations strengthen their infrastructure.
For example, Intel Xeon 6 processors include AES-256 memory encryption and microcode signing to help protect processor data and platform integrity. Future platforms are expected to expand support for post-quantum security across firmware and software signing, device interconnects, authentication, and secure boot capabilities, helping organizations align with evolving government and industry requirements.
Post-quantum algorithms typically require different key sizes and may create additional computational overhead compared with traditional cryptographic methods. Intel addresses these challenges with cryptographic accelerators, optimized libraries, and specialized CPU instructions designed to reduce latency and support performance requirements. Technologies such as Intel QuickAssist Technology can offload cryptographic workloads, enabling enterprises to adopt stronger algorithms while maintaining application performance and service-level agreements.
Source: www.technologyreview.com