Page 274 - Cyber Defense eMagazine RSAC Special Edition 2025
P. 274
Zero-Trust Architecture in the Era of Quantum
Computing: A Proactive Defense Strategy
Navigating the Quantum Threat with Next-Gen Security
By Dinesh Besiahgari, FrontEnd Engineer II, Amazon Web Services
The cybersecurity world is on the brink of a revolution, driven by quantum computing. Quantum
computers can also break the encryption systems we depend on daily while powering breakthroughs in
medicine, artificial intelligence, and beyond. Organizations must adapt fast as traditional perimeter-based
security becomes obsolete. Enter Zero Trust Architecture (ZTA), a proactive, resilient strategy, which is
ready to defend digital ecosystems against the looming quantum threat.
The Quantum Threat: Breaking Cryptography as We Know It
Quantum computers are not only faster; they are a different kind of technology. Using quantum
mechanics, they can solve some problems in seconds, which would take millions of years for classical
computers. One alarming example is Shor’s algorithm, which can break most modern cryptographic
274
