Case Study: Rand Merchant Bank prevents 6,500+ email data loss incidents and boosts POPIA compliance with Proofpoint

How Tessian Helped Prevent Data Loss and Ensure Compliance Without Admin Overhead

Rand Merchant Bank, a division of FirstRand and one of Africa’s leading corporate and investment banks with ~45,000 employees across Asia, Europe and Africa, faced persistent email-driven data loss risks. Traditional, rule-based DLP left them with poor visibility, slow, reactive investigations and pressure to meet POPIA compliance, while still being unable to stop employees from exfiltrating sensitive data without disruptive restrictions.

Tessian deployed Guardian and Enforcer to automatically detect and prevent misdirected/misattached emails and malicious exfiltration without complex rules or heavy admin. The solution was quick to deploy, low‑maintenance and non-disruptive, and helped prevent roughly 6,500 incidents in two years (4,027 accidental data-loss events and 2,427 unauthorized emails), while improving user behavior and reducing security team overhead.

Rand Merchant Bank

Angela Henry

Senior Manager of Information Security