Case Study: Leading U.S. Financial Services Company achieves 100% rejection of fraudulent email and stops domain spoofing with Proofpoint

Proofpoint people-centric email security solution halts directed email attacks

A leading U.S. financial institution with a 150‑year history, more than 6,500 advisers and roughly five million clients faced rising risk from business email compromise (BEC), email account compromise (EAC) and domain‑spoofing as it migrated to the cloud. Limited visibility into inbound and outbound mail left the firm vulnerable to sophisticated phishing and impersonation attacks that threatened customer trust and financial exposure.

The company deployed a multilayered Proofpoint solution—Email Protection, Targeted Attack Protection (TAP), Threat Response Auto‑Pull (TRAP), Email Fraud Defense (EFD) with DMARC, and Cloud App Security Broker (CASB)—to block, quarantine and remediate threats across email and cloud apps. In a recent 30‑day window Proofpoint blocked or quarantined over 6.6 million unwanted messages (37% of ~18 million inbound), achieved full rejection of fraudulent mail, stopped domain‑based spoofing, protected employees’ cloud accounts, and eliminated cloud account compromises since CASB deployment.