Once you have authenticated your Account,
You will not need to authenticate again for fifteen minutes.

from Apple (Ft. Hella Apple Lawyers) – ITunes Terms of Service on Rap Genius

Meaning

This is a BIG headache for those who have complicated passwords.

To help improve the meaning of these lyrics, visit “ITunes Terms of Service” by Apple (Ft. Hella Apple Lawyers) and leave a comment on the lyrics box