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Europol Warns Crypto Wallets Face Quantum Threats

The agency said migration could take years and urged developers, custodians and users to start testing quantum-resistant systems now.

  • On Oct 7, Europol published two reports examining how quantum computing advances could threaten digital assets and encrypted information, urging the industry to begin security preparations now.
  • Though current machines lack the capacity, quantum computers could theoretically derive private keys from exposed public keys, potentially allowing attackers to sign transactions without permission.
  • NIST-Approved standards including FIPS 203, FIPS 204, and FIPS 205 provide quantum-resistant cryptography frameworks that organizations are beginning to implement ahead of practical threats.
  • BitGo and Silence Laboratories tested post-quantum multiparty computation signing earlier this year, while Coinbase and Sui are designing infrastructure to support future quantum-resistant authentication methods.
  • Europol also warned of "harvest now, decrypt later" tactics targeting long-lived confidential data, noting that migration requires complex coordination among developers, custodians and network validators.
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Europol says cryptocurrency portfolios, not blockchains, are the main point of exposure to quantum computer attacks

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Europol recommends starting from now on the transition to post-quantic cryptography: a sufficiently powerful quantum computer could derive private keys from exposed public keys, although the agency does not present the threat as imminent.

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TFTC broke the news on Wednesday, October 7, 2026.
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