As APIs are being utilized to normalize data transfer from various application endpoints and 3rd party resources we have created interconnectivity that invites attacks. Instrumenting one's self to ensure data integrity and security can be the difference between a minor incident and a major data breach. In this talk I will discuss what my research has shown about Indicators of Compromise that already exist in your APIs. I will go over recent attacks that we have fended off as well as those that have been observed at other organizations. Within this discussion will be how to instrument yourself to pull the indicators from the data.