I am using an encrypted Bitcoin-qt wallet and I just noticed a randomly labeled Bitcoin receive address in my wallet. I would not have written the random label unless I somehow accidentally pressed buttons on the keyboard without noticing.

I would like to make sure nothing suspicious is going on. Should I treat the address with suspicion or just rename it? I just want to be sure, the password encryption I use is very secure/unqiue.

I should add that I have also been using Armory so perhaps Armory created an address in Bitcoin-qt?