How Rakuten Transformed Insider Risk Management at Scale

Mimecast is not just about stopping spam or malware—it’s about providing a suite of services that make email management a strategic asset. If you’re looking for a partner that understands email and delivers value beyond security, Mimecast is the way to go..” — Peter Donnelly, Keystone’s Group Head of IT

Rakuten’s journey demonstrates the transformative impact of Mimecast Incydr for Insider Risk Management & Data Protection. By integrating with Exabeam and automating critical processes, Rakuten achieved enterprise-wide visibility, rapid threat detection, and significant operational efficiencies, empowering both security and business stakeholders to protect critical assets in a dynamic, distributed environment.

Key Points:

• Enterprise-Scale Visibility and Control: Rakuten successfully deployed insider risk management across 40,000+ employees, integrating file activity monitoring and automated HR system APIs for comprehensive oversight across multiple business units.
• Advanced Threat Detection and Response: The team identified previously unknown risk patterns, such as suspicious new hire activity within 60–90 days, by leveraging file hash databases and anomaly detection—uncovering threats that traditional prevention-based controls missed.
• Cost-Effective, Automated Investigations: By establishing baselines and automating file tracking, Rakuten eliminated expensive manual investigations, enabling instant answers to critical questions like “Is this abnormal?” and “What is the exposure of this file?”, saving time and resources.