ANA

From Memory Alpha, the free Star Trek reference

The ANA program was a computer subprogram created by the Bajoran engineer Neela in 2369.

Chief of operations Miles O'Brien found this program on ops while checking several systems and tried to get access to this program. The computer voice denied access due to a personal security access code which was created by chief of operations Miles O'Brien.

According to Lieutenant Jadzia Dax, this file was protected by a series of encryption sequences and she tried to run an adaptive program. O'Brien said that they were lucky because this is a Cardassian computer and it shouldn't have any more than seven sequences.

After O'Brien and Dax found the right encryption sequence, 4100RLX, they were informed that the command protocols of this program include a system of sequential overrides of the security fields around runabout pad A, an escape route. (DS9: "In the Hands of the Prophets")