Boarding pass barcodes 'can be read by smartphones'

[mhm]

A vulnerability in US domestic airline boarding pass barcodes could allow travellers to bring unauthorised items on board, says a security expert.

The codes reveal what kind of airport checks a passenger will face and can be read by smartphones, he says.

It could undermine the US's PreCheck system which randomly decides which frequent fliers can skip part of the pre-boarding security process.
http://www.bbc.co.uk/news/technology-20080621