precheck

The barcodes on airline boarding passes may look innocent. However, one security researcher says that a smartphone camera allows anyone to figure out whether or not they'll be selected for a security check. Aviation expert John Butler recently ... noted, via his blog, that the information on barcodes isn't encrypted. (Source: wordpress.com ) Although airport staff use special scanners to read the barcodes, it turns out that a camera phone can scan the barcode and the proper app can convert it to a string of codes. You can then use the Internet to find out what these codes mean. Pre-Check ... (view more)