Cyber air warfare: Mass hack sees British Airways freeze thousands of accountsBritish Airways (BA) has locked down thousands of frequent flyer accounts after a mass cyber-attack from an unknown source. BA announced on Sunday it had frozen the accounts after becoming aware its systems had been hacked on a mass scale. The airline maintained that although the affected accounts number in the tens of thousands, no personal details of frequent flyers had been accessed or stolen. BA issued an apology to customers, saying the accounts would be freed up within a few days. The source of the hack is unknown, but it is believed to have been carried out using a computer program that infiltrated BA’s systems in search of vulnerabilities, before penetrating online security. In a statement, a BA spokesperson said: “British Airways has become aware of some unauthorized activity in relation to a small number of frequent-flyer executive club accounts. This appears to have been the result of a third party using information obtained elsewhere on the internet, via an automated process, to try to gain access to some accounts. FULL REPORT