A large-scale cyberattack has targeted some of Britain's largest employers, including the BBC and British Airways. At the origin of the hack, which targets the personal data of 100,000 employees, a group called Clop and suspected of being in Russia.

The warning, written in broken English, was posted on the dark web. The message invites the organizations affected by the attack to send an email before June 14 to the Clop group to start negotiations, failing which the stolen data will be published.