Signifyd, ecommerce fraud prevention service, allows developers to integrate the service with third party ecommerce platforms through the Signifyd API. The Signifyd service uses a number of data points, and allows users to give greater importance to certain points depending on need, to develop a risk score and develop a fraud assessment. From social media activities, to bank data, Signifyd takes a holistic approach to fraud prevention.
Yelp spent two years developing a bug-bounty program with Hackerone, which led to over 100 resolved reports. Now, Yelp is taking the program to the broader public to engage a wider set of security researchers. The program offers bounties starting at $100 and can pay up to $15,000.