[Nextgrid]

> Initial investigations into the problem show it relates to some of the flight data we received. Our systems, both primary and the back-ups, responded by suspending automatic processing to ensure that no incorrect safety-related information could be presented to an air traffic controller or impact the rest of the air traffic system. There are no indications that this was a cyber-attack.

[dwroberts]

This is the dodgy flight plan referenced by OP. A post mortem would explain in detail why there were problems with the data and exactly what they were

[sidewndr46]

based on this statement it sounds like the UK's system is just a copy of ERAM as used in the US for flight planning. Enter one flight that is outside of the understood parameters and all flights need to be grounded.

[interestica]

Not a cyber attack, but the way it's described makes it seem like an attack vector. (Inject bad safety data, let the cascade take it all down?)