Exactly. They serve different (although related) purposes.

Do not enter the code under any circumstances, or you will be sorry. It's definitely and most likely a hacking attempt.  That happened to me a couple of years ago, and I kept receiving those prompts for months. It's simply the attacker trying to get you tired of the constant requests, so you just give up and enter the code, so they can log in to your account. 

Ooooo it is hot hot hot!

Ah well, who needs computers in the next 10... 15 years right? At this point is just money laundering.