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Quantum Security Reference
What Is PQC Migration?
PQC migration is the process of transitioning an organization's cryptographic infrastructure from classical algorithms to post-quantum standards. NIST estimates three to five years for a large agency. Most enterprises should expect the upper end. This reference explains what the migration…
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Quantum Snake Oil
Quantum Financial System (QFS)
The "Quantum Financial System" is not a technology. It is a conspiracy theory rooted in the NESARA/GESARA movement that has been weaponized to sell fraudulent cryptocurrency tokens, fake "activation fees," and pump-and-dump schemes.
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Quantum Security Reference
What Is Quantum Key Distribution (QKD)?
Quantum key distribution uses the laws of physics to share encryption keys in a way that makes eavesdropping detectable. The security guarantee is real, but so are the practical limitations. This reference explains the technology, the protocols, and the ongoing…
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Quantum Security Reference
What Is Quantum Error Correction (QEC)?
Quantum error correction is how quantum computers fight their own fragility. Without it, no quantum computer can run the long computations needed to break cryptography. For security leaders, QEC progress is the single most important indicator of how fast the…
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Quantum Snake Oil
Unhackable Quantum Encryption
QKD's information-theoretic security is real physics. "Unhackable" is not. Detector blinding, Trojan horse, and side-channel attacks have been demonstrated against commercial QKD systems. The protocol is secure; the hardware is not immune.
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Quantum Snake Oil
Unconditionally Secure
"Unconditionally secure" is a real term with a precise mathematical meaning. In product marketing, the qualifying assumptions are stripped away, leaving a claim of absolute security that the physics never intended.
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Quantum Snake Oil
Perfect Secrecy
Shannon's 1949 theorem defines perfect secrecy precisely: the key must be at least as long as the message and used only once. Any product claiming perfect secrecy while violating either condition is contradicting a mathematical proof.
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Quantum Snake Oil
Information-Theoretic Security
Information-theoretic security means security that holds regardless of an attacker's computational power. In marketing, the term is presented as an absolute, implementation-independent guarantee. It is not. The guarantee applies to a model, not to a box.
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Quantum Snake Oil
Quantum Encryption / Quantum Cryptography
"Quantum encryption" and "quantum cryptography" technically refer to QKD and related protocols. In marketing, they are applied to everything from NIST post-quantum algorithms to classical software with no quantum hardware. This guide disambiguates.
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Quantum Snake Oil
Quantum-Enhanced
"Quantum-enhanced" is applied to everything from phones with real QRNG chips to classical software with no quantum hardware. The term has no standard definition, which makes it a vehicle for claims that range from overstated to fabricated.
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Quantum Snake Oil
Quantum-Safe vs Quantum-Resistant vs Post-Quantum
"Quantum-safe," "quantum-resistant," and "post-quantum" are used interchangeably by vendors. Standards bodies have spent years trying to fix this. The differences matter for procurement, compliance, and whether a product does what you think it does.
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Post-Quantum, PQC, Quantum Security
The Anatomy of Quantum Denial: What Bitcoin’s Response to the Quantum Threat Teaches Every CISO
At Bitcoin 2026, the same main stage hosted engineers building quantum-resistant upgrades and a trio claiming quantum computers can never work because Bitcoin proves time is discrete. The dysfunction that produced this scene plays out in every enterprise boardroom facing…
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Quantum Security Reference
What Is a Logical Qubit?
Every quantum computing headline features a qubit count. Almost none of them distinguish between physical qubits and logical qubits. That distinction is the single most important concept for evaluating quantum progress — and the one most consistently misunderstood outside the…
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Quantum Security Reference
What Is a CRQC (Cryptographically Relevant Quantum Computer)?
A CRQC is the quantum computer capable of breaking real-world cryptography. None exists today, but the engineering path is advancing across every required capability. This reference explains what a CRQC requires, how to track progress toward one, and why the…
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Quantum Security Reference
What Is Q-Day?
Q-Day is the day a quantum computer can break widely used public-key cryptography. Predictions range from 2030 to never. But as I have argued, that debate is becoming irrelevant — regulators, insurers, and technology vendors have already set their own…
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