HotPads, a real estate platform, uses Twilio to reduce fraud in transactions by automating phone number verification before processing credit card transactions, resulting in a significant reduction in fraudulent listings without affecting conversion rates. The company also leverages Twilio's call tracking feature to provide valuable insights to premium listing customers and improve the effectiveness of its promoted listing products. By utilizing Twilio's services, HotPads has streamlined its operations and improved the overall user experience while providing a cost-effective solution for fraud prevention.