The Quantum Risk Landscape – What GCC Leaders Must Understand
As quantum computing advances, the threat it poses to today’s encryption systems is no longer just an academic concern. For Global Capability Centers (GCCs) — now central to enterprise cybersecurity and technology operations — understanding and preparing for the quantum risk landscape is not optional. It’s a strategic imperative.
Gireesh Kumar N
5/23/20253 min read


What Exactly Is Quantum Risk?
Quantum computers — once they reach sufficient scale — will be capable of breaking widely used public-key cryptographic algorithms such as RSA, ECC, and DH. This threatens the confidentiality, integrity, and authenticity of enterprise data, communications, software, and identities.
Importantly, this is not about what quantum computers can do today — it’s about the decisions enterprises must make now to prepare for the quantum-enabled future.
“Harvest Now, Decrypt Later” — The Silent Threat
Even before large-scale quantum computers become a reality, attackers may already be harvesting encrypted data — storing it today with the intent to decrypt it in the future using quantum capabilities.
This “harvest now, decrypt later” strategy puts any long-lived sensitive data — such as intellectual property, healthcare records, financial data, or strategic communications — at immediate risk.
For GCC leaders overseeing massive data operations and enterprise cybersecurity, this is a critical consideration in current risk assessments — understanding the extent of their exposure and taking suitable actions.
Digital Signatures — A Hidden Risk Multiplier
Digital signatures are foundational to trust across software, transactions, and identity systems — from signed software updates to legal contracts and authentication tokens.
Quantum computers will be able to forge these digital signatures, jeopardizing:
Signed software and firmware (including CI/CD pipeline updates)
Digitally signed documents and contracts (legal, financial, procurement)
Identity verification systems and authentication protocols
For GCCs supporting DevOps, compliance, legal, and identity platforms, this vastly expands the quantum attack surface — and demands an urgent re-evaluation of signature schemes and workflows.
Supply Chain and Third-Party Quantum Risk
Modern enterprises depend on complex ecosystems of vendors, service providers, open-source tools, and cloud platforms. Many of these:
Use vulnerable cryptographic algorithms
Are deeply embedded in infrastructure and software stacks
Operate outside direct enterprise control
This introduces cascading quantum risk that propagates through supply chains, code dependencies, and third-party integrations.
GCCs must proactively:
Evaluate vendors and partners through a quantum-security lens
Collaborate with procurement and risk teams on PQC-readiness assessments
Embed quantum considerations into third-party audits and onboarding processes
The Global Push for Quantum-Safe Cryptography
The urgency to transition to quantum-resistant cryptography is being echoed globally across governments, industries, and standards bodies:
NIST has finalized standards for quantum-resistant algorithms (ML-KEM FIPS 203, ML-DSA FIPS 204, SLH-DSA FIPS 205). NIST IR 8547 ipd also outlines how to transition from quantum-vulnerable to post-quantum cryptographic algorithms, including expected timelines.
NSA (CNSA 2.0) and other agencies have issued mandates for PQC readiness between 2025–2033.
NCSC (UK) and ENISA (EU) urge early planning, crypto agility, and inventory analysis.
Enterprises in banking, telecom, automotive, and healthcare have already launched quantum-safe pilot programs.
This reflects a global consensus: migration will take years, and those who wait may be left exposed and unprepared.
🧭 The Urgency for Enterprises — and GCCs
Migrating cryptographic systems is a 5–10 year journey, particularly in regulated, legacy-rich environments.
Waiting for full-scale quantum computers is not a viable strategy — discovery, inventory, and planning must begin now.
GCCs are well-positioned for early quantum-safe pilots, cryptographic modernization, and risk mitigation programs.
This is a pivotal moment for GCCs to step into a leadership role — shaping secure, future-ready systems from within.
Quantum Risk Is Business-Specific and Impact-Driven
Not all systems and data face equal quantum exposure. Risk varies based on:
The sensitivity and lifespan of the data
The cryptographic protocols in use
Regulatory or compliance mandates
Industry-specific standards and third-party reliance
With deep visibility into enterprise architectures and data flows, GCCs are well-positioned to assess quantum risk in context — aligning cybersecurity strategy with business priorities.
GCCs: Your Role Starts with Understanding the Risk
As trusted cybersecurity and technology hubs, GCCs are expected to do more than execute — they must drive innovation, resilience, and regulatory readiness.
To lead the quantum-safe journey, GCCs should:
Educate internal teams about quantum risk and implications
Collaborate with risk, compliance, and security leadership
Initiate quantum-readiness conversations within enterprise functions
Kick-start assessment of cryptographic assets, systems, and supply chains
Is your GCC prepared to lead your enterprise into the post-quantum future? Now is the time to raise awareness, assess risk, and start the quantum-safe journey.
Contact us out to discuss how you can begin your quantum-safe journey.