Quantum computing is becoming a pressing issue for companies, governments, banks, and digital platforms, compelling them to upgrade security systems that protect money, identities, communications, and vital infrastructure. Once a theoretical concern, the shift to quantum-safe infrastructure is now a practical issue for every institution.
The scientific community is developing quantum-safe encryption techniques, and numerous companies have outlined plans to transition to quantum-resistant infrastructure. However, these plans often suggest radical changes that require companies to rebuild infrastructure from scratch. This approach is impractical.
Banks cannot overhaul their core systems overnight. Governments cannot halt public services to replace key communication systems. Similarly, payment companies, hospitals, and cloud providers cannot remove the security systems they depend on without introducing operational risks.
Quantum Computing as a Security Concern
Many still view quantum computing as a future breakthrough. Yet in security circles, it already influences long-term strategies across industries like finance, government, defense, healthcare, and digital infrastructure. Today’s digital economy relies on encryption to secure bank transfers, passwords, medical records, governmental communications, and more.
A powerful quantum computer could potentially undermine the cryptography safeguarding these systems. Though such a computer may be years away, the real issue is the risk of delayed preparation. Large organizations have slow processes involving audits, vendor reviews, budget approvals, and more. By the time the threat is undeniable, the opportunity for a seamless transition could be lost.
There’s also an under-discussed risk: companies need time to test quantum-safe infrastructure in real-world conditions. A solution that seems strong in theory might be infeasible for major institutions to deploy at scale. Security measures are only useful if organizations can adopt them.
The Challenge of Building Quantum-Safe Infrastructure
Transitioning to quantum-safe infrastructure involves more than software updates. It demands a shift in security paradigms within complex systems that have evolved over the years. Banks, governments, and other entities operate through intricate infrastructure layers. Security is deeply integrated into these structures.
Discussions often focus on cryptographic tools: their mathematical strength, efficiency, cost, and adherence to standards. While these are vital, they overlook operational realities. A technically strong system might still fail in practice. Solutions must integrate with existing systems like banking platforms, payment channels, and cloud environments.
A Gradual Approach to Quantum-Safe Upgrades
The move to quantum-safe infrastructure should be phased. Organizations need time to identify systems at quantum risk, test new protections, and determine their interaction with current operations. They must run old and new systems in parallel before fully transitioning.
Standards and implementation models for quantum-security are still evolving. Organizations should not rush into rigid changes based on assumptions that could shift as technology advances. Infrastructure should be adaptable over time.
Organizations should incrementally add quantum-safe protections, expanding gradually as confidence builds. A financial institution might focus on secure communications, while a healthcare provider may prioritize patient data. Government agencies could start with systems requiring the longest confidentiality.
Investing in Practical Solutions
The next phase of quantum security must focus more on feasible solutions. More resources should target systems enabling realistic upgrades, and research should prioritize compatibility with existing infrastructure.
Businesses should revise their roadmaps, viewing quantum readiness as an integral part of infrastructure planning, risk management, and board-level discussions. They must question the realism of their plans.
In the quantum era, new defenses are necessary. Institutions best prepared will be those that start strengthening their current infrastructure, taking a careful, gradual, and realistic approach. Companies relying on unrealistic plans or waiting for a perfect solution will face a challenging transition.
Jay Prakash is the founder and CEO of Silence Laboratories, which focuses on developing institutional-grade quantum-safe infrastructure.