Condensed matter theory physicist and quantum information expert Sankar Das Sarma has argued in MIT Technology Review that quantum computers remain a very long way away from cracking RSA-based cryptography.
An example of the methodology in crypto is the creation of a new wallet that generates a public address and private key.
Quantum security is seen as a major issue in the blockchain and crypto sector and it is widely believed that powerful quantum computers will one day become advanced enough to hack current cryptography.