Commenting on the statements from the GMB trade union suggesting there was a link between the current problems and the IT redundancies and the outsourcing of some work to an Indian IT firm last year, the airline told The Registrar: "We would never compromise the integrity and security of our IT systems.
"IT services are now provided globally by a range of suppliers and this is very common practice across all industries" and ... "the UK Government," the unnamed official told the London-based online publication.
British Airways CEO Alex Cruz has said the root cause of the London flight-grounding IT systems is "a power supply issue" and that the airline has "no evidence of any cyberattack".
The airline has cancelled all flights from London's Heathrow and Gatwick amid a "global IT system failure", resulting in the cancellation of flights, stranding thousands of passengers at airports.
The airline's IT teams are working "tirelessly" to fix the problems, said Cruz.
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