Q-Day: The Quantum Reckoning (Part II): What Breaks, Who Prepares, and the Quantum Boom That Follows

By Kelly Koepsell

For more than three decades, cryptographers, physicists, and national-security experts have warned about a single moment they call "Q-Day"-the day a cryptographically relevant quantum computer (CRQC) can run Shor's algorithm fast enough to shatter the public-key encryption that protects nearly every secure communication on the planet. Until recently, that day felt comfortably distant, something for the 2030s or beyond.

• Format: Paperback
• Language: English
• ISBN: B0H2DLCKD8
• ISBN13: 9798197681836
• Release Date: May 2026
• Publisher: Independently Published
• Length: 60 Pages
• Weight: 0.21 lbs.
• Dimensions: 0.1" x 6.0" x 9.0"