One huge issue with GDS/EDIFACT is that it has no security built in. It was designed in a time when every actor was considered trustworthy. Banks also relied (

One huge issue with GDS/EDIFACT is that it has no security built in. It was designed in a time when every actor was considered trustworthy. Banks also relied (rely) for years on "antiquated" systems but they took the "they just work" and built some security around them. Airlines did not. This [0] presentation from 33C3 was really interesting (more readable form [1]). [0] https://media.ccc.de/v/33c3-7964-where_in_the_world_is_carmen_sandiego https://media.ccc.de/v/33c3-7964-where_in_the_world_is_carme... [1] https://ourdataourselves.tacticaltech.org/posts/50-booking-flights/ https://ourdataourselves.tacticaltech.org/posts/50-booking-f...