Quantum computing may not break today’s encryption tomorrow morning, but the timeline for disruption is shrinking fast. According to Anil Nama, CIO of CtrlS Datacenters, the threat is now a medium-term, high-impact risk that enterprises cannot afford to ignore.
“Quantum risk is not an overnight collapse of encryption — it’s a strategic threat that requires preparation today, not after Q-day arrives,” Nama said in a press release. He warned that while fully capable quantum machines are still years away, advances in hardware and cryptanalysis have pulled expected timelines forward, making long-term data confidentiality increasingly fragile.
The biggest immediate danger is the global rise of harvest-now, decrypt-later (HNDL) operations, where attackers quietly collect encrypted data today, intending to decrypt it once quantum capability matures.
Why HNDL Attacks Make Enterprise Data Extremely Vulnerable
Nama explained that HNDL attacks pose severe risks to industries holding long-retention or high-sensitivity data.
“Threat actors are already stockpiling encrypted datasets — government files, R&D archives, trade secrets — with the expectation that future quantum systems will unlock them,” he said.
Even enterprises using strong encryption today could face a retrospective breach years later if they don’t migrate to quantum-safe standards in time. Nama stressed that shifting to new cryptography is complex, multi-year, and infrastructure-deep, meaning organizations that wait will struggle to catch up.
Hybrid Cryptography Becomes the New Normal
As global standards evolve, most organizations are adopting hybrid cryptographic architectures, where classical and post-quantum algorithms work side-by-side.
“Hybrid cryptography gives you redundancy and agility — if one layer weakens, the other preserves security,” Nama noted. He emphasized that hybrid schemes allow organizations to maintain compatibility across their existing systems, avoiding destabilizing migrations while still building quantum-resilient protection.
Although hybrid models introduce overhead due to larger keys and added negotiation steps, they offer a structured, low-risk path toward future-proof security.
Quantum Key Distribution Has Matured — But Has Limits
Nama said Quantum Key Distribution (QKD) is now commercially viable, especially for organizations that require the highest secrecy guarantees.
Fiber-based and satellite-based QKD links are already in use globally, but he cautioned that they are not a universal replacement for traditional encryption.
“QKD works best for point-to-point, ultra-sensitive links — but it’s not yet practical for enterprise-wide rollout,” he said.
High cost, physical infrastructure needs, and integration complexity mean that QKD will remain a selective, premium-tier security option over the next decade.
Crypto-Agility Will Define Data Center Security for the Next 10 Years
Looking ahead, Nama believes data centers will undergo the most significant cryptographic transition since the introduction of public-key systems.
Over the next decade, he expects:
widespread adoption of crypto-agile key management
enterprise-wide transition to post-quantum cryptography (PQC) standards
hybrid encryption architectures becoming default security models
selective deployment of QKD for ultra-sensitive workloads
PQ-readiness becoming a compliance requirement for regulated industries
“Quantum-resilient security will stop being a research topic. It will be baked directly into infrastructure design and operational processes,” Nama said.
He urged enterprises to begin preparation now: assess cryptographic inventories, modernize key management, demand PQC-roadmaps from vendors, and avoid deploying new systems that cannot be upgraded to quantum-safe standards.
A Transition That Cannot Be Delayed
Nama’s message is clear: Waiting for quantum computers to arrive is the wrong strategy.
“The migration is large, multi-layered, and touches everything from hardware to identity systems. If organizations don’t start now, they will discover too late that quantum readiness cannot be rushed,” he warned.
For India’s data centers and cloud environments — many of which store decades of sensitive citizen, financial and enterprise data — the shift to quantum-safe cryptography has officially moved from optional to essential.
