SECURING YOUR DATA
Your User ID contains the name of the ID owner (usually this is your name) and certificates.
You can view the contents of your User ID by clicking File -> Security -> User Security (Macintosh OS X users: Notes -> Security -> User Security).
Because your User ID acts as your identification, you must store it in a safe place just as you would a passport or driver's license.
When you are away from your computer, you should always lock your ID to protect the data that you have accessed with your User ID.
Related tasks Switching User IDs Recovering your User ID Roaming user