I know that security through obscurity is frowned upon and considered not really secure, but isn\'t a password security through obscurity? It\'s only secure so long as no one f
No. Let's look a definition of security through obscurity from wikipedia
a pejorative referring to a principle in security engineering, which attempts to use secrecy (of design, implementation, etc.) to provide security.
The phrase refers to the code itself, or the design of a system. Passwords on the other hand are something a user has to identify themselves with. It's a type of authentication token, not a code implementation.