David Ignatius is a prize-winning columnist for the Washington Post and has been covering the Middle East and the CIA for nearly three decades. He has written several New York Times bestsellers, most recently The Director. He lives in Washington, DC.

About the Book — A hyper-fast quantum computer is the digital equivalent of a nuclear bomb: whoever possesses one will be able to shred any encryption in existence, effectively owning the digital world. The question is: Who will build it first, the United States or China?

The latest of David Ignatius’s timely, sharp-eyed espionage novels follows CIA agent Harris Chang into a quantum research lab compromised by a suspected Chinese informant. The breach provokes a mole hunt that is obsessive, destructive, and―above all―uncertain: Do the leaks expose real secrets, or are they false trails meant to deceive the Chinese? Chang soon finds that there is a thin line between loyalty and betrayal, as the investigation leads him down a rabbit hole as dangerous as it is deep.

Grounded in the real-world global charge toward technological dominance, The Quantum Spy presents a sophisticated game of cat-and-mouse wired to an exhilarating cyber thriller.