China has recently rejected accusations that it has carried out a major cyberattack against Microsoft.

This became necessary after the U.S., the U.K., the EU, New Zealand, Australia, and others accused China of using state-sponsored hackers (Hafnium) to infiltrate Microsoft’s Exchange system, which supplies the emails of large corporations as well as those of small businesses and public institutions.

While the hack affected no fewer than 30,000 organizations around the world, China maintains that the accusations pointing in its direction were all “fabricated,” stating that the country rejects any form of cybercrime.

China’s foreign minister said the U.S. had led its allies to target China with “unreasonable criticisms.”

Microsoft blamed the group Hafnium for the hack, saying the group was state-sponsored and based in China.

Western security sources also said that Hafnium knew that Microsoft had planned to deal with the vulnerability and shared it with hackers from China.

U.S. President Joe Biden said the Chinese government may not have known exactly what was happening but he said he believes that they were protecting those responsible.

For more information, read the original story on the BBC.