Zevotek, Inc. (ZVTK)

[Dumbarse]

Let me break it down for you:

1. "The guy" can access IHUB at work, but not facebook.
2. "The guy" reads IHUB and sees a post from somebody showing a screenshot.
3. The screenshot is that of the facebook page.

Ergo, "The guy" knows about the facebook page, through IHUB, from work. Try to keep up.