G7 tells businesses to prepare for quantum cybersecurity threats

The G7 is urging governments and organizations to begin adopting quantum-resistant encryption as soon as possible. The goal is to reduce the risk that advanced threat actors could access sensitive data when quantum computers become capable of breaking current encryption standards.

Virtually every industry relies on encryption to protect information. Banks, telecommunications providers, defense organizations, and other groups commonly use AES (Advanced Encryption Standard). Decrypting data without the correct key is currently considered almost impossible because of the computational effort required.

The G7 warning says organizations should begin planning their PQC transition now and aim to complete it within the timelines set by their national cybersecurity authorities. It identifies CRQCs (cryptographically relevant quantum computers) as a future threat.

Organizations that delay the transition could lose competitive advantages or be excluded from contracting opportunities, including public procurement. The G7 recommends identifying critical systems, using a phased and risk-based strategy, starting early, and creating an inventory of cryptographic assets. It also advises mapping dependencies and developing a transition plan.

Buying products that integrate PQC and replacing systems during their standard renewal schedule could reduce migration costs. Careful planning may also help prevent insecure implementations and greater exposure to conventional cyber threats.