They get your credit card information and then constantly charge you month after months after months. Even though I cancelled my account with them they said it was shut down but 3 months afterwards they kept charging me.
No matter how many times I cancelled they finally after all these months cancelled my account and stopped taking money from my account. Over a year later I get a letter in the mail from Intellius and I couldn't figure what it was. The letter mention that I signed up for the account and money was taken out from an account of mine and that I should call them to get my refund.
After I googled it I realized it was the same company trying to get me to call them for another scam to get more money. It never ends.