Russia’s invasion of Ukraine has intensified concerns of global cyberattacks on critical medical devices, such as ventilators, which are being targeted by cybercriminal hackers in the U.K.

The threat comes following the arrest of an alleged pro-Putin cybercriminal in London who is believed to be responsible for a hack on government and media websites in Romania. The suspect is part of a group known as “Killnet” who have since vowed to disable NHS ventilators, as well as ones in Romania and Moldova should their comrade not be released.

Killnet has claimed responsibility for the attacks in Romania following the country’s support for Ukraine during the ongoing Russian invasion.

Pages attacked include the government homepage, defence ministry and various political parties and private companies.

Read the full article at Express.