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Quantum computers as covert intelligence advantage

March 31, 2026Matthew Green

Matthew Green argues state actors gain far more from keeping quantum capability secret, saying breaking Bitcoin is trivial compared to breaking global communications.

for state actors, the value of having a quantum computer is massively higher if you DON’T tell people you have a quantum computer.
Exploiting Bitcoin is a parlor trick.
Exploiting the world’s communications is where the value is at.
Matthew Green
quantumcryptoSIGINT

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