British security services say hackers working for the Russian state have been targeting organisations working on a coronavirus vaccine and trying to steal their research.
The National Cyber Security Centre has issued the warning jointly with the United States and Canada, calling the attacks despicable.
The Foreign Secretary, Dominic Raab, has also said Russian “actors” tried to interfere in last year’s general election by using social media to distribute leaked documents about a future trade deal with the United States.
Russia has denied all the claims.
Sophie Raworth presents BBC News at Ten reporting from Security Correspondent Gordon Corera, Moscow Correspondent Sarah Rainsford and Political Editor Laura Kuenssberg.
Covid-19 (Coronavirus) news from BBC