https://phys.org/news/2018-10-ba-customers-affected-cyber.html

A further 108,000 people's personal details without card verification value have also been compromised, the airline said in a statement.

"While British Airways does not have conclusive evidence that the data was removed from its systems, it is taking a prudent approach in notifying potentially affected customers, advising them to contact their bank or card provider as a precaution," it said.