Box 1191 - Password backup

Box 1191 - password backup is a holodisk located in the People's Bank of Point Lookout. It gives access to a safe deposit box. Upon entering the bank, follow the wall to your right all the way to the desk in the back corner. The holodisk will be in this desk. To access the safe deposit box, open your Pip-Boy, start playing the holodisk, and immediately exit the Pip-Boy 3000, before or after interacting with the voice activated security system. The security system will tell you that you have been granted access the safe deposit box and it will open.

Behind the scenes
The holodisk is a reference to Edgar Allen Poe's story The Raven.