Microsoft has announced that it is accelerating its quantum-safe security roadmap, citing rapid advances in quantum computing and the growing need to replace today’s encryption standards sooner than previously expected. The company plans to transition its critical products and services to post-quantum cryptography (PQC) by 2029 through its Microsoft Quantum Safe Program (QSP).
The move is driven by concerns over “harvest now, decrypt later” attacks, where cybercriminals steal encrypted data today and store it until future quantum computers become powerful enough to break existing encryption methods. Although current quantum computers cannot crack modern encryption, researchers believe organisations should begin preparing for the transition now.
Microsoft joins companies such as Apple, Google and Signal, which have already started integrating post-quantum cryptography to replace existing public-key encryption algorithms with quantum-resistant alternatives.
In a company blog post, Microsoft said, “For years, planning for post-quantum cryptography (PQC) was framed as a future problem: important, inevitable, but distant. That perspective is evolving as technology advances and organizations prepare for the scale and complexity of the transition ahead.”
The company also warned, “Advances in quantum research and development have shifted the risk horizon. We believe cryptographically relevant quantum computers could arrive sooner than previously expected—and the work required to prepare is significant so organizations need to start now.”
As part of its roadmap, Microsoft is incorporating quantum-safe requirements into its Secure Future Initiative (SFI) while focusing on 3 key priorities. These include upgrading network cryptography through modern protocols such as TLS 1.3, building crypto-agility to enable seamless adoption of future cryptographic algorithms, and modernising cryptographic trust chains used for code signing, certificate management, software updates and hardware-backed key protection.
According to Microsoft, integrating PQC into the Secure Future Initiative will allow organisations to monitor quantum-safe readiness alongside broader cybersecurity objectives and better prepare for the next generation of cryptographic security.
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