Microsoft Accelerates Post-Quantum Cryptography Shift to 2029

The rapid advancement of quantum computing poses an existential threat to current encryption standards such as RSA and ECC, which underpin the security of virtually all modern digital communications and stored data. Microsoft's accelerated timeline reflects a growing recognition that 'harvest now, decrypt later' attacks — where adversaries collect encrypted data today to decrypt it once quantum computers mature — are already a real risk. Organizations that delay cryptographic modernization risk exposing sensitive data retroactively, even if it appears secure today. Crypto-agility, the ability to swap cryptographic algorithms without overhauling entire systems, is now a foundational architectural requirement rather than a nice-to-have. Proactive alignment with NIST's post-quantum cryptography standards is essential to remain compliant and resilient as the threat landscape evolves.