British Airways has announced that reservations made on BA.com or through the British Air mobile app between August 21 and September 5 were affected by a hack that resulted in the theft of 380,000+ names, addresses, credit card numbers, expiration dates and security codes.
More information can be found at https://www.britishairways.com/en-us/information/incident/data-theft/latest-information
NOTE: Reservations made through a travel agency were NOT impacted by this breach. Travelers holding a BA ticket issued through Cain during these dates will encounter no disruption to their travel due to this breach.