This plugin checks if there are suspicious actions during the purchase process by assigning them a coefficient of risk which will block the order automatically if it is too high, setting it as pending.
Meanwhile, you will receive an email and you will be free to discretely check the possible buyer, asking for more information before approving the purchase of the product and so on. Two simple words: goodbye scams!
YITH WooCommerce Anti-Fraud was designed appositely for all of those vendors that are tired to try the impossible in order to boost the number of their customers and their sales only to run into a huge rate of fraudulent purchases.