British Airways confirmed this week that thousands of its frequent-flyer accounts were hacked.
The airline told several publications that personal data, including credit card numbers, were not stolen, but it froze several thousand frequent-flyer accounts while it works through the issue.
British Airways issued the following apology in the wake of the breach:
We are sorry for the concern and inconvenience this matter has caused, and would like to reassure customers that we are taking this incident seriously, and have taken a number of steps to lock down accounts so they can no longer be accessed.
Uber, meanwhile, is denying that it had been hacked, even though thousands of accounts are reportedly up for sale on the dark web.