This plugin detects one-time email addresses (disposable email, trashmail, mailinator, 10minutemail) and helps to keep your userbase and comments clean. Free registration at www.block-disposable-email.com needed.
With the Byteplant Email Validator plugin you can easily verify with a real-time live check if an email address really exists and is valid (https://www.byteplant.com/email-validator/).
Description: This fraud prevention plugin is an add-on for WP e-Commerce plugin that helps merchants to screen order transactions and prevent payment fraud.
The Floodspark Counterespionage Firewall (CEF) WordPress plugin helps you block reconnaissance or otherwise illegitimate traffic including hackers, bots, and scrapers.
Eliminate credit card fraud chargebacks, stop manually reviewing orders and increase your order approval rate with NoFraud's real-time fraud screening.
SEON is an API-based fraud management solution helping merchants and payment providers radically reduce fraud loss. This extension connects your Woocommerce store to SEON using the Fraud API, which is an end-to-end solution for online fraud prevention. It involves all of our module APIs.