Long story short. Our company had a legit check to a supplier stolen out of the mail.
The people who stole it took all the information off the check and reproduced new high quality fake checks using the banking information on our real check (or cheque as I normally write it ;-) ).
A month ago, somebody in the Bronx tried to cash one of these fake checks for 30 grand. Our bank stopped it after it was deposited. So we are not out any money. We closed the account shortly after.
Today, another one of these fake checks for 90 grand shows up in Florida. The person who received the check contacted us. Turns out he was doing the reverse Nigerian on the scammers.
It started when he replied to an email from them. They offered to give him 10% for acting as a go between for our company and some bogus agricultural company in Europe and Africa. They provided him all these bogus documents detailing our "contract" between the two companies.
They offer him 10% of any checks he can cash. They gave a place to forward to the 90% to in Texas. Obviously this guy in Florida and the other guy in the Bronx will be on the hook when the check bounces.
But, this scam was all by email.