Windows Servers Are a Cryptographic Liability: Entire Countries Can Be Left Exposed to Quantum Attacks

In backend development, choosing between Windows and Linux often feels like a matter of preference. But under the hood, that choice determines something much deeper: Do you control your cryptography — or does your OS vendor? In a world moving toward post-quantum cryptography (PQC), that question is no longer theoretical. What Is Post-Quantum Cryptography (PQC)? Today’s internet security relies heavily on cryptographic algorithms like: RSA ECC (Elliptic Curve Cryptography) These are used in TLS to: exchange keys secure HTTPS traffic They are considered secure against classical computers. However, a sufficiently powerful quantum computer could break these algorithms using techniques like Shor's algorithm. That leads to a well-known threat model: Store now, decrypt later An attacker can: Capture encrypted traffic today Store it Decrypt it in the future once quantum capabilities exist Post-Quantum Cryptography (PQC) refers to new algorithms designed to: remain secure even against quantum c