Post Quantum Cryptography Review: Quantum-Safe Evolution, Applications and Global Market Surge

In the wake of accelerating quantum computing threats, Post-Quantum Cryptography (PQC) emerges as a vital shield

for global data security, that will poised to revolutionize industries by 2030. This review article traces cryptography's evolution

from ancient ciphers to NIST's 2025 standards, detailing quantum-resistant algorithms like ML-KEM and ML-DSA that counter

Shor's algorithm vulnerabilities. Potential real-world applications in finance, healthcare, cloud computing and beyond, it

highlights PQC's role in safeguarding sensitive transactions, patient records and IoT networks amid projections of Q-Day as

early as 2029. With the PQC market surging from $0.42 billion in 2025 to potentially$29.95 billion by 2034, driven by regulatory

mandates and innovation, the paper underscores India's GCCs as quantum-ready hubs unlocking trillions in value through

strategic adoption. Also,as data Centres are projected to grow to $100B by 2027, needs immediate migration to avert catastrophic

breaches, this article equips stakeholders to strategise the quantum era's challenges and opportunities.