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Technology Jun 16, 2025

Quantum leap: DRDO & IIT-D showcase secure laser communication

DRDO and IIT Delhi just pulled off a big leap in secure messaging—they used quantum entanglement to send encrypted info over a distance of more than one kilometer, all without traditional cables.
The demo happened on June 16, 2025, right on the IIT Delhi campus with Professor Bhaskar Kanseri leading the charge.

TL;DR

How entangled photons help create super-secure encryption keys

It's all about entangled photons—tiny particles of light that help create super-secure encryption keys.
If anyone tries to snoop, the quantum state changes instantly and lets you know.
In their test, they managed a key rate of about 240 bits per second with less than 7% error.

Nearly unhackable security for banking and defense

This breakthrough means nearly unhackable security for things like banking and defense—and it doesn't even need expensive fiber optic cables.
It puts India ahead in the global race for next-gen communication tech and supports bigger plans to grow in quantum technology.