El Al security procedures require that all passengers be interviewed individually prior to boarding, allowing El Al staff to identify possible security threats. Passengers will be asked questions about where they are coming from, the reason for their trip, their job or occupation, and whether they have packed their bags themselves. The likelihood of potential terrorists remaining calm under such questioning is believed to be low.
At the check-in counter, passengers' passports and tickets are closely examined. A ticket without a sticker from the security checkers will not be accepted. At passport control passengers' names are checked against information from the FBI, Canadian Security Intelligence Service (CSIS), Scotland Yard, Shin Bet, and Interpol databases. Luggage is screened and sometimes hand searched. In addition, bags are put through a decompression chamber simulating pressures during flight that could trigger explosives. El Al is the only airline in the world that passes all luggage through such a chamber. Even at overseas airports, El Al security agents conduct all luggage searches personally, even if they are supervised by government or private security firms.
Undercover agents (sometimes referred to as sky marshals) carrying concealed firearms sit among the passengers on every international El Al flight. Most El Al pilots are former Israeli Air Force pilots. The cockpits in all El Al aircraft have double doors to prevent entry by unauthorized persons. A code is required to access the doors, and the second door will only be opened after the first has closed and the person has been identified by the captain or first officer. Furthermore, there are reinforced steel floors separating the passenger cabin from the baggage hold.
Following an attempt to shoot down an Israeli airliner in 2002, all aircraft in the fleet have been equipped with an infrared countermeasures system called Flight Guard, developed by Israeli Aerospace Industries to defend them against anti-aircraft missiles.
