Users rarely change their email address over time, which makes it a valuable datapoint for assessing risk in online transactions. Emailage, which opened for business in 2012, has built a predictive risk score that uses an email address as the root datapoint. When they send requests to Emailage, customers indirectly share fraud fighting intelligence by contributing to the company’s database, which is comprised of positive and negative signals associated with an email address, as well as other datapoints. Last year, Emailage was used in the review of $180 billion in ecommerce transaction...