BEYOND AI: THE RACE FOR QUAN- TUM SUPREMACY

S Mohini Ratna,
Editor - VARINDIA

Quantum computing has moved from scientific research laboratories to the center of geopolitical competition. No longer a distant possibility, it is emerging as a strategic technology capable of transforming cybersecurity, defense, healthcare, finance, materials science, and artificial intelligence. Unlike    classical computers that process information in binary bits, quantum computers use qubits to perform millions of calculations simultaneously, solving problems that today's most powerful supercomputers would require centuries— or even billions of years—to complete. The country that achieves practical quantum advantage first will gain an unprecedented technological and strategic edge.

One of the greatest concerns surrounding quantum computing is its ability to break today's public-key encryption. Security experts   refer to this milestone as "Q-Day"—the moment quantum computers become powerful enough to compromise RSA and ECC encryption, the security foundations protecting global banking systems, military communications, healthcare records, government networks, and critical infrastructure. While Q-Day has not yet arrived, the preparations by nation-states have already begun.

A growing cybersecurity threat is the "Harvest Now, Decrypt Later" strategy. Intelligence agencies and sophisticated cybercriminals are believed to be collecting encrypted government communications, financial records, intellectual property, and classified information today with the expectation that future quantum computers will eventually decrypt them.
 
Sensitive information with long-term value may already be vulnerable, making post- quantum preparedness an immediate priority rather than a future consideration.

China has emerged as one of the world's most aggressive investors in quantum technology. Through coordinated government funding estimated at more than US$15 billion, Beijing has integrated quantum computing into its long-term national technology strategy. The country has demonstrated significant progress in superconducting processors, photonic quantum computing, quantum communications, and nationwide Quantum Key Distribution (QKD) networks. Its rapidly expanding quantum ecosystem reflects a comprehensive approach that combines research, manufacturing, infrastructure, and industrial policy.

The United States continues to maintain leadership through its world-class research institutions and private-sector innovation. Companies including Google, IBM, Microsoft, IonQ, and Quantinuum are pursuing multiple hardware architectures while advancing quantum software and error correction. Recent breakthroughs in quantum processors, fault-tolerant computing, and new qubit technologies demonstrate America's continued strength in frontier innovation. However, maintaining that leadership requires sustained investment in manufacturing capacity, semiconductor supply chains, and quantum talent.

Recognizing the strategic importance of quantum technology, the U.S. government has accelerated its national strategy through new executive actions promoting quantum innovation and mandating the transition toward Post-Quantum Cryptography (PQC). Governments worldwide are increasingly viewing quantum computing as both an economic opportunity and a national security imperative, driving investments in secure communications, defense applications, scientific research, and next-generation computing infrastructure.

The real competition extends far beyond building the first powerful quantum computer. Leadership will depend on the ability to establish manufacturing ecosystems, secure supply chains, develop international standards, commercialize applications, and deploy quantum technologies at national scale. Countries that successfully integrate quantum computing with artificial intelligence, advanced semiconductors, cybersecurity, and high-performance computing will define the next generation of digital infrastructure.

For enterprises, quantum readiness begins with visibility. Organizations must identify cryptographic assets, inventory certificates and encryption dependencies, and begin planning migration to NIST-approved post-quantum algorithms. Waiting until practical quantum computers become commercially available could expose decades of sensitive information to retrospective decryption attacks.

The coming decade will determine whether quantum computing becomes humanity's greatest scientific accelerator or its most disruptive cybersecurity challenge. The race is no longer simply about scientific discovery—it is about economic leadership, national resilience, digital sovereignty, and technological independence. Nations and enterprises that prepare today by investing in quantum research, post-quantum security, and resilient digital infrastructure will shape the global balance of power in the quantum era.

As Q-Day approaches, India is accelerating its post-quantum readiness. Through the National Quantum Mission and homegrown innovators like FaceOff Technologies, India is building quantum-safe defenses. FaceOff's FO AI — combining real-time identity intelligence with cryptographic resilience — positions India as an emerging global leader in post-quantum security innovation.

Post-Quantum Cryptography addresses one critical layer — encrypting data in transit and securing model integrity against future quantum decryption. However, AI supply chain threats like poisoned datasets, tampered weights, and prompt injections demand behavioral intelligence beyond cryptography. PQC and AI-native security tools like FaceOff's FO AI must work together.

Quantum computers don't just compute faster — they solve millions of problems simultaneously using qubits, making today's RSA, ECC, and AES encryption standards fundamentally obsolete. Every bank transaction, military communication, and government record becomes vulnerable. No current encryption is quantum-safe. The threat isn't coming — it's already being harvested.

As Quantum Breaks Today's Encryption, It's Time to Build India's Quantum-Safe Defence.