Researchers from the US Department of Energy's Quantum Science Center and IBM have successfully simulated the quantum dynamics of a magnetic crystal, KCuF3, using a 50-qubit IBM Quantum Heron processor. This achievement demonstrates the capability of current-generation quantum hardware to produce reliable simulations of real materials, marking a significant milestone in the field. The simulation was quantitatively reliable, indicating a major breakthrough in the application of quantum computing to materials science. This development has significant implications for the field of cryptography, as advancements in quantum computing bring us closer to the potential cracking of current encryption methods1. The urgent need for post-quantum cryptography planning increases with each breakthrough, highlighting the importance of migrating to quantum-resistant cryptographic protocols. So what this means for practitioners is that the timeline for cryptographic migration has narrowed, making it essential to prioritize planning and implementation of post-quantum cryptography solutions.