Frontier Airlines is allegedly exposing passengers' passport details, home addresses, and partial payment information through vulnerabilities in its online booking system, according to a security researcher who says sensitive booking data can be accessed using only a booking reference and surname, details printed on boarding passes and embedded in barcodes. The alleged flaw, reportedly disclosed months ago, remains unresolved.
A discarded boarding pass may carry more risk than expected, with a security researcher claiming Frontier's system has been exposing passport data, addresses, and partial credit card information through booking system weaknesses.