You’ve probably gotten a text message claiming you have a package waiting for you and you just need to fix an address or correct an error. What happens if you click on the link? Two researchers dug in and found a multimillion-dollar crime network going by the name Darcula. And now Google is trying to take Darcula’s scam network apart.

All it took was one missing letter in an email address. A Florida family lost more than $30,000 when an email impostor infiltrated their home purchase and made off with the down payment. Here's how this real estate wire fraud happened.