Zero Day Harvest

By David Bishop

What if the encryption protecting every hospital, power plant, and pharmaceutical factory in America was already broken - and nobody knew?

Rachel Maddigan is the best industrial control systems auditor in the country. When she's called to investigate a subtle quality drift at a pharmaceutical plant in Indianapolis, she expects a calibration error. What she finds instead is hidden code buried inside the factory's controllers - code that has been quietly poisoning a psychiatric medication taken by 47,000 patients.

Cole Bridger is an NSA cryptanalyst who has spent three years writing classified memos warning that China's quantum computing program will break American encryption. Nobody listened. Now a purpose-built quantum computer codenamed Heavenly Abacus is silently cracking the keys to America's most critical systems - and Rachel just found the proof in a crystallization vessel on the west side of Indianapolis.

As the two race to map an invisible attack spanning pharmaceutical plants, power stations, and water treatment facilities, they uncover a 47-target operation designed to hold American infrastructure hostage. But the real weapon isn't the quantum computer. It's the destruction of trust - in the AI systems that monitor our factories, in the encryption that guards our secrets, and in the medications that millions of patients swallow every day.

The only defense is ground truth: an engineer with a thermometer, checking whether the machines are telling the truth. And the clock is running.

Featuring: Authentic quantum computing science and real industrial control system architectureA pharmaceutical sabotage plot with devastating human consequencesThe classified world of NSA cryptanalysis and interagency intelligenceA strategic threat scenario ripped from tomorrow's headlines

• Format: Paperback
• Language: English
• ISBN: B0GR5YN53M
• ISBN13: 9798250645324
• Release Date: March 2026
• Publisher: Independently Published
• Length: 492 Pages
• Weight: 1.44 lbs.
• Dimensions: 1.1" x 6.0" x 9.0"