A prominent UK retailer specializing in quality apparel, home goods, and premium foods has transitioned their SIEM platform to Microsoft Sentinel.
This change included a comprehensive integration with Microsoft Defender and other security tools from Microsoft. As configurations increased over time, the system became increasingly complex, leading to operational challenges.
The Alert Overload Problem
Following the SIEM migration, the retailer's SOC team faced an overwhelming digit of alerts
Following the SIEM migration, the retailer's Security Operations Center (SOC) team faced an overwhelming number of alerts.
A significant portion of these alerts were false positives, straining resources and weakening the organization's ability to thoroughly investigate legitimate threats.
RiverSafe's Solution: Optimizing Configurations
To tackle this challenge, RiverSafe was enlisted to review and optimize Microsoft Defender configurations and refine Microsoft Sentinel queries. The consultancy conducted a detailed assessment of the existing setup and provided practical recommendations to the SOC team.
While some modifications were easily implemented, others required collaboration with various departments—a task the SOC team struggled with for months.
Facilitating Communication for Effective Implementation
RiverSafe's advisor played a key role in enhancing contact between the SOC team and other units
RiverSafe's consultant played a key role in enhancing communication between the SOC team and other departments.
Detailed documentation and clear explanations were provided to ensure the necessity and benefits of the changes were understood. This initiative enabled the timely execution and meticulous documentation of the adjustments.
Key Impacts
Within weeks, changes that had been stalled for months were accomplished, improving collaboration between networking and security teams. The adjustments reduced alerts by 62%, significantly enhancing the focus and efficiency of the SOC team by minimizing extraneous alerts.
These improvements not only bolstered the organization's security posture but also empowered the SOC team to concentrate on genuine threats and respond more effectively.
