India, May 21 -- In a world where sensitive data, from military communications to financial transactions, faces unprecedented cybersecurity threats, India has taken a significant step towards guaranteeing unhackable security. The country recently reached a watershed moment when it successfully demonstrated Quantum Key Distribution (QKD), a method of secure communication, using an advanced fibre optic cable known as Multi-Core Fibre (MCF).

But why is QKD critical for modern communication? The answer is simple: it ensures ultra-secure communication by harnessing the principles of quantum physics to exchange encryption keys, such as passwords, between two parties.

What sets QKD apart is its ability to detect any attempt at interception or ...