Here is what I was talking about. Got it in my first google.
http://www.cigarsforless.com/cigar_faq.php#bloom
What does Bloom mean?
Bloom is a grayish fuzz that can appear on a well aged cigar. It is not mold, and it is completely harmless. It is a residue from the fermenting oils within the cigar, and is indicative that you have ideal storage conditions. You can identify it as bloom if it easily wipes off if you brush it gently with your finger. If you can not easily remove it, and it is more of a white color, it is probably mold.