BA, Boots and BBC cyber-attack: who is behind it and what happens next?

A cybercrime group has exploited a flaw in MOVEit software and is demanding a ransom

British Airways, Boots and the BBC have been hit with an ultimatum to begin ransom negotiations from a cybercrime group after employees' personal data was stolen in a hacking attack.

It emerged on Wednesday the gang behind a piece of ransomware known as Clop had posted the demand to its darkweb site, where stolen data is typically released if payments are not made by the victims.