Case Study: Penningtons Manches achieves significant reduction in mis-sent emails with Proofpoint

Penningtons Manches - Customer Case Study

Penningtons Manches is a leading UK law firm with offices across the country and a wide range of corporate, dispute resolution and private client services. Because of the sensitive nature of client work and past incidents of project information being sent to the wrong recipients, the firm wanted a technological solution to reduce misaddressed emails and chose Tessian for its machine‑learning approach.

Tessian was rolled out to 600 UK users, where its detections and minimal notifications quickly proved effective at preventing misaddressed emails. The deployment significantly reduced the firm’s risk of data loss, provided daily oversight of interventions, and helps Penningtons Manches demonstrate due diligence to clients and regulators.

Penningtons Manches

Marcus Shepherd

Risk Manager