Case Study: LGL Group achieves accidental data-loss prevention and compliance with no admin overhead using Proofpoint

How Tessian Prevents Accidental Data Loss and Ensures Compliance Without Admin Overhead

LGL Group, a financial‑services administrator with more than 100 employees across London, Jersey and Luxembourg, faced a major risk from accidental data loss caused by misdirected emails. With a Microsoft‑first stack and a lean security team, they couldn't get clear visibility or effective prevention from built‑in tools and needed a non‑disruptive, low‑maintenance DLP solution that would change user behaviour without heavy admin or training.

They deployed Tessian Guardian, Human Layer Security Intelligence and the Human Layer Risk Hub to automatically detect and block misdirected emails and risky attachments, provide in‑the‑moment warnings, and deliver clear dashboards for investigation and reporting. The solution deployed quickly, is managed by two people with no day‑to‑day maintenance, has prevented several potential data‑loss incidents, and produced demonstrable, long‑term improvements in user behaviour and overall risk posture.

LGL Group

Peter Messervy-Gross

Chief Information Officer