Security expert David Stubley says vulnerability in airline check-in software could have been exploited to allow users to view other individuals’ boarding passes and personal details. The flaw was discovered by Stubley, who heads Edinburgh, Scotland-based security testing firm and consultancy 7 Elements. The vulnerability existed in travel software developed by Madrid-based Amadeus IT Group, which develops travel industry software used by 500 airlines, including United Airlines and Air Canada. It would have affected all of the approximately 500 airlines that use the software.”]
Source: https://www.govinfosecurity.com/security-flaw-exposed-valid-airline-boarding-passes-a-12783