List of people who banned from flying is maintained by the Terrorist Screening Center and is maintained by the FBI, as well as the Department of Justice and several other agencies, including the CIA and the US Department of Homeland Security.
The federal government restricts any information about this document due to concerns that terrorists would then be able to circumvent the bans.
It is US government policy to neither confirm nor deny the presence of anyone on the “black list”, although someone who received a boarding pass before departure, it definitely isn't.
Before 9/11, the federal government only put 16 people on the list, but it quickly expanded after the attack. By 2011, the document contained about 16,000 names, and by 2013 this number had risen to 47,000 entries.
According to media reports, a new list found online contains more than 1.5 million names with dates of birth.
Hackers discovered the list while browsing a public server. “The server contained data from the 2019 version of the federal no-fly list, which included first and last names and dates of birth.”
Personal data, including numbers passports, addresses and telephone numbers, approximately 900 airline employees. Passenger data is said not to have been compromised.
The Transportation Security Administration (TSA) said in a statement that it is “conducting an investigation in coordination with federal partners.”