Mortgage Trigger Data is created when a borrower fills out a 1003 (mortgage application), and has their credit report pulled. This creates a credit inquiry event which is flagged on the borrower’s credit record.
The credit bureaus aggregate all of the flagged records on a daily basis and make the information available to paying marketers as a “trigger” file within 24-48 hours of the original mortgage application. YIKES! And yes, in case you are wondering, this is a totally legal practice.