Cryptography & Privacy

Quantum Risk

Also: Post-Quantum Cryptography

The concern that a sufficiently powerful quantum computer could break the digital-signature math protecting today's blockchains. No such machine exists yet, but research estimates of how large one would need to be have fallen sharply, and developers are working on quantum-resistant options in advance, such as a draft Bitcoin proposal (BIP-360) for a new type of address.

General education, not investment, legal or tax advice. Markets and regulation change quickly: where a definition depends on current law or on a recent event, check the latest coverage before relying on it.