# Quantum Computing is a growing risk for Bitcoin.

Source: https://x.com/cryptoquant_com/status/1876644367148236940
Kiwi News: https://news.kiwistand.com/stories/Quantum-Computing-is-a-growing-risk-for-Bitcoin?index=0x677fd6f2120a96f7735c174d3f73963d85efb38eb1dbea7d93c8df2877300a6c31c57959
Submitted by 0xEc84...27CB on 2025-01-09 UTC, 1 upvote, 0 comments

## Summary

Quantum computing poses a growing risk to Bitcoin because Shor's Algorithm could, in theory, let quantum computers find private keys from public keys. Pay to public key (P2PK) addresses are the most vulnerable, since the public key serves directly as the address, while pay to public key hash (P2PKH) addresses offer extra protection but expose the public key when Bitcoin is transferred, so address reuse significantly increases vulnerability. Since quantum speculation rose, P2PKH address usage has increased by 14%, though it is unknown whether this results from quantum computing rumours.

## Article

Private Key Security & Quantum Risks

Another major concern is Shor’s Algorithm, which could, in theory, allow quantum computers to find private keys from public keys. ‘Pay to public key’ (P2PK) addresses are most vulnerable to quantum attacks, as the public key serves directly as the address. ‘Pay to public key hash’ (P2PKH) addresses offer extra protection but expose the public key when Bitcoin is transferred. Therefore address reuse significantly increases vulnerability.

But there's hope. Since the rise of quantum speculation, P2PKH addresses have increased in usage by 14%. It unknown if this is a result of the Quantum Computing-rumours, but it's happening.