Security and privacy

Card 124

Security and privacy
Card 124
Topic 10 · Security and privacy · Captain

When could quantum computers become a threat to Bitcoin?

Answer

Correct answer

Answer C: If one day they could calculate the corresponding private key from a public key.

Why is this correct?

The relevant threat would be a sufficiently powerful quantum computer able to derive private keys from exposed public keys. That is why quantum-resistant protection and migration approaches for Bitcoin are already being discussed.

Sources used

Primary source · EN · Technical source

BIP 360 - Pay-to-Merkle-Root und Long-Exposure-Angriffe

HTTPS: YESChecked: 28 Aug 2026ACCESSIBLE

This source is mainly intended for developers. The relevant information may therefore be harder to find.

Check original source
Supplementary source · EN · Technical source

BIP 361 - Post Quantum Migration and Legacy Signature Sunset

HTTPS: YESChecked: 28 Aug 2026ACCESSIBLE

This source is mainly intended for developers. The relevant information may therefore be harder to find.

Check original source