ANSSI and G7 cybersecurity agencies have published a call to action urging public and private organizations to begin preparing their migration to post-quantum cryptography now. The quantum threat is now considered a short-term risk, with organizations being invited to anticipate without waiting for a quantum computer capable of compromising current systems to emerge. The call warns against the « harvest now, decrypt later » attack scenario, in which adversaries store encrypted data to break it later with a quantum computer. Migration to post-quantum cryptography should be completed by the end of the 2030s, and the cryptocurrency sector, including Bitcoin and Ethereum, is directly concerned by this transition.
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