By $artcileSetails[‘authors’]
Publication Date: 2025-11-19 00:00:00
Quantum computing is shifting from theoretical curiosity to engineering reality, with progress now putting pressure on the cryptographic foundations of global finance. For Ray Harishankar, IBM fellow for Quantum Safe technology — who holds more than 25 patents and is the author of Becoming Quantum Safe — the implications are neither abstract nor distant. Modern financial systems rely on asymmetric cryptography for everything from payments to identity. Once quantum machines reach sufficient scale, today’s security guarantees will need to be re-evaluated
Speaking on the sidelines of the Singapore FinTech Festival (SFF) 2025, Harishankar outlined how close the industry is to that threshold, where the greatest systemic risks lie and what banks must prioritise as they begin migrating to post-quantum cryptography (PQC). His message is direct: the transition to quantum-safe cryptography is entirely achievable with early preparation.
Quantum computing…