Online Travel Agencies (OTAs) like Booking.com, Expedia, and Skyscanner face significant challenges in combating eCommerce fraud due to the high resale value of airline tickets and hotel bookings, making the industry a prime target for fraudsters. Common types of fraud include the use of stolen payment cards, chargeback fraud, account takeover, and ticket cancellation schemes. To mitigate these risks, OTAs are advised to implement robust identity verification and fraud prevention measures, such as partnering with companies like Fingerprint and Vesta that offer advanced technologies like browser fingerprinting and machine learning-driven fraud detection. Customers are also encouraged to book through reputable OTAs, verify the authenticity of booking sites, and consult trusted review platforms to safeguard against fraud. With identity theft on the rise, both OTAs and their customers must remain vigilant and proactive in the ongoing battle against online travel fraud, leveraging specialist providers to enhance security beyond standard payment provider capabilities.