Case Study: Guaranteed Rate blocks 2.5M threats and speeds app access 2–3x with Zscaler

Guaranteed Rate Blocks Millions of Threats and Accelerates M&A Integration From Months to Days

Guaranteed Rate, the U.S. second-largest retail mortgage lender with 500+ branches and 6,000+ employees, faced rising cyber risk as it moved to hybrid work. Legacy VPNs, firewalls and backhauling from 500+ branches expanded the attack surface, left encrypted and zero‑day threats largely uninspected, slowed access to critical apps, and complicated M&A integrations.

By deploying the Zscaler Zero Trust Exchange (ZIA, ZPA, ZDX, Risk360 and Deception) and integrating with CrowdStrike, AWS and Okta, Guaranteed Rate gained always‑on TLS/SSL inspection, least‑privilege access to 500+ private apps, and real‑time user and risk insights—resulting in 97% of encrypted traffic inspected, 2.5M threats blocked in three months, 2–3× faster app access, faster M&A onboarding from months to days, and reduced operational overhead.

Guaranteed Rate

Darin Hurd

Chief Information Security Officer