Western Digital announces post-quantum cryptography hard drives

Western Digital (WDC) Corporation announced a significant step in next-generation infrastructure security with the integration of post-quantum cryptography into its newest high-capacity Ultrastar UltraSMR hard disk drives. As AI infrastructure evolves from compute-centric deployments to data systems that persistently retain information across every inference, training run, and interaction, the durability and security of that data becomes foundational, not optional. These drives are currently in qualification with multiple hyperscale customers, reflecting strong early interest in quantum-resilient storage architectures.

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