BA customers' hacked credit card details have probably already been sold

Hacked data - including CVV codes - worth about 20m on dark web, cybersecurity experts say

The credit card details of 380,000 British Airways customers could already be on sale on the internet after the airline suffered a "malicious" data breach, experts have warned.

Customers were scrambling to change their credit card details on Friday, after BA said it was investigating the theft of passengers' financial data from its website and app over a two-week period between 21 August and 5 September. The airline said it would compensate passengers for any losses, signalling the potential for large payouts, given the number of customers affected.