What is this square "code" thing? The one with the smaller squares in the two upper corners and the lower left corner? What is it called?
It says to scan it. What are you supposed to scan it with?
I am seeing these things all over the place. There's one on a sticker pasted to my new laptop. I've seen some on posters in store windows. This one is from an envelope containing a statement from a "global" mutual fund.
I have no clue.
Any help would be appreciated.