Windows 11's most important new feature is post-quantum cryptography. Here's why.
Briefly

Microsoft is proactively updating Windows 11 by integrating new encryption algorithms designed to resist quantum computing threats. This update, unveiled at the BUILD 2025 conference, responds to the potential risk posed by quantum computers, which could eventually compromise the RSA cryptosystem and elliptic curve encryption extensively relied on for data security. The enhanced, quantum-resistant algorithms have been added to the SymCrypt cryptographic library for Windows 11, ensuring that sensitive information remains secure against future computational capabilities. This transition marks a significant step in preparing for the next technological era, focused on safeguarding data integrity.
Microsoft is proactively updating Windows 11 with new encryption algorithms to counter future quantum computing threats, marking a pivotal technological milestone.
Quantum computing, when fully developed, threatens conventional encryption methods like RSA and elliptic curve encryption, prompting Microsoft to integrate quantum-resistant algorithms.
At BUILD 2025, Microsoft unveiled quantum-resistant algorithms in Windows 11's SymCrypt library, ensuring security against potential future quantum attacks on sensitive data.
As quantum computers can potentially break traditional encryption systems in mere minutes, Microsoft’s initiative is crucial to avert a cryptopocalypse.
Read at Ars Technica
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