The US has imposed sanctions against Chinese developers of quantum computers – Bits Media

US Bureau of Industry and Security (TO) added to the sanctions list 27 companies, "threatening US national security". Among them 8 Chinese companies, developing quantum technologies.

According to the US Department of Commerce, 27 new organizations were
added to the list for various reasons. Eight Chinese companies were sanctioned due to risks, related to quantum computing technology. However, these measures are unlikely to affect the work of these companies and will not be able to significantly delay the emergence of quantum computers.

"Eight technology enterprises, based in China, added to the list as part of the Commerce Department's efforts to prevent new US technologies from being used for PRC quantum computing, that support military applications, such as stealth technologies and anti-submarine programs, and also have the ability to break ciphers or develop strong encryption.".

Quantum computers have been cited as a potential threat to cryptocurrencies due to their theoretical ability to break many cryptographic algorithms, which protect blockchains. Quantum computing expert Andrew Fursman (Andrew Fursman) stated in May, that he firmly believes in the threat to Bitcoin from quantum computers.

"No matter, will quantum computers appear tomorrow, in five or ten years, they can be dangerous for cryptography. These devices will be able to do, what are you doing, perhaps, You won’t want to if you keep a secret.”.

In his opinion, it is worth reconsidering the cryptographic protection of blockchains, considering that, what will quantum computers of the future be able to do?.

Also in 2019 year information appeared, that the US National Security Agency (ANB) plans to create quantum-resistant cryptotechnology. The goals of the project are currently unknown. IN 2020 CSIRO company Data61, together with the Monash Blockchain Technology Center, announced the development of a blockchain protocol, which is resistant to hacking using quantum computers. That same year, North Carolina-based electronics systems manufacturer Honeywell created a quantum computer from 64 qubits, superior to analogues from Google and IBM.