The TSA says there are four ways to obtain a boarding pass: Go to your airlines ticket counter at the airport, use curbside check-in. Print your own boarding pass using your computer, and it’s amazingly simple to doctor the name, date, time, flight number and even the airline name and logo. TSA personnel do nothing more than visually review the boarding pass, which is not checked against airline records by scanning the barcode until boarding. There are no standards for boarding passeseach airline has a different format.”]
Source: https://www.csoonline.com/article/2120415/the-no-fly-list-and-airport-security-s-achilles-heel.html