EasyJet has become the latest victim of a cyber attack, which resulted in the travel plans and email addresses of millions of its customers being stolen.
Hackers also managed to steal the credit card details of 2,208 passengers.
The airline said the attack came from 'a highly sophisticated source', adding: "As soon as we became aware of the attack, we took immediate steps to respond to and manage the incident and engaged leading forensic experts to investigate the issue. We also notified the National Cyber Security Centre and the ICO (Information Commissioner's Office). We have closed off this unauthorised access. "
It said the email address and travel details of approximately nine million customers were accessed.