I saw this interesting page on JetBlue's help pages. It says the following:


  • (Typical password restrictions).

  • Cannot contain a Q or Z

Why would they not allow specific characters in their passwords? Does it have something to the way passwords are hashed?

  • 3
    Duplicate of this question.
    – user55325
    May 14, 2014 at 4:12
  • The earlier question on Security.SE has a good accepted answer. This one should probably be closed.
    – Rory Alsop
    May 14, 2014 at 11:45
  • It is a duplicate, but on a different site... How do mods handle that? May 16, 2014 at 0:27

1 Answer 1


Archaic holdover - probably that's why, look at the picture: enter image description here

  • What even is that thing?
    – stib
    May 14, 2014 at 6:11
  • 3
    Good question stib - it looks a bit like a phone but instead of the mouthpiece being a trumpet into the wall box, they appear to have developed a combined mouthpiece/earpiece to make this more portable. The wonders of modern technological advances eh!
    – Rory Alsop
    May 14, 2014 at 11:44

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