Preparing for a quantum-safe future

Quantum computing holds immense potential, yet poses significant risks to encryption standards that safeguard governments, businesses, and critical infrastructure worldwide. While AI transforms organizational operations, quantum computing could fundamentally challenge the cryptographic foundations that protect sensitive data and digital communications. The timeline remains uncertain, but organizations should prepare now to assess their cryptographic exposure and plan for post-quantum security.

Investment in quantum computing is accelerating, with major economies like the US dedicating significant funding. The UK's quantum innovation commitment, aiming to become a global leader in manufacturing and deploying quantum computers, further underscores the rapid development of this technology. This progress could revolutionize fields like energy optimization, transportation, and global supply chains.

However, it also poses a substantial cybersecurity risk, as quantum computers could break widely used encryption much faster than current methods allow.

The cybersecurity threat is already present, with adversaries employing the 'harvest now, decrypt later' strategy to collect and store encrypted information for future decryption with quantum power. This threat extends to sensitive and long-lived data, including government records, intellectual property, and confidential business information. Once quantum technology advances, even intercepted data may become exposed.

Organizations across industries must act now, transitioning to quantum-safe security. The first step involves understanding current exposure by identifying and auditing the information requiring long-term protection and the cryptography securing it. This cryptographic audit helps prioritize systems and data for attention in the migration to post-quantum cryptography (PQC).

Standards from the National Institute of Standards and Technology (NIST) can guide this transition. Other methods, like quantum key distribution (QKD), use quantum mechanics to share encryption keys securely but require specialized infrastructure.

Ultimately, organizations must start the transition to quantum resistance immediately, mapping exposure, testing alternatives, and establishing migration priorities. The sooner they act, the better prepared they will be to manage the transition before their information faces quantum threats.