UK Foreign Office has imposed sanctions on Chinese companies and other companies for their involvement in the cyber attack on the Electoral Commission. The Electoral Commission's system was said to have been accessed illegally over the course of about a year, up to October 2019.

There is a high possibility that the Chinese government will retaliate in some way in response to the latest sanctions. The UK Foreign Office insisted that there will be no impact on the election.. Public broadcaster BBC reported that there is a possibility that a lot of personal information may have passed to the Chinese side.