Why choose dataverify? Make Better Lending Decisions – Faster. As an Authorized Report Supplier for Day 1 Certainty™ from Fannie Mae, DataVerify® provides complete verification services — including 4506 tax transcripts — through the Fannie Mae Desktop Underwriter® (DU®) validation service.How does datadataverify protect personal information? DataVerify strives to protect personal information that we collect, maintain, and disclose through the use of administrative, physical, and technical safeguards. Personal information submitted online is transmitted through a transport layer security (TLS) transmission, which is a protocol for establishing a secure connection for transmission.Does dataverify collect or ask for my social security number? In the course of business, DataVerify may collect or ask that you disclose your Social Security Number. We protect the confidentiality of Social Security numbers. Accordingly, we prohibit the unlawful disclosure of personal information, including Social Security Numbers, and limit access to the same.