Discovering security information and event management (SIEM) involves the collection of logs and events from various sources such as applications, servers, and firewalls. At the enterprise level, SIEM is a crucial component for threat detection and response.
Security information and event management, commonly known as SIEM, plays a vital role in gathering logs and events from a multitude of sources like applications, servers, and firewalls. This collected data serves as a fundamental element in threat detection and response for enterprises.
In the realm of small and medium-sized businesses (SMBs), the landscape surrounding SIEM is more complex due to the proliferation of managed services for security operations centers, security orchestration, automation and response (SOAR), managed detection and response (MDR), and extended detection and response (XDR). To simplify this intricate scenario, insights from experts are sought to navigate the options available.
In the SMB sector, SIEM is not typically a standalone solution but requires additional layers of resources for optimal functionality. According to Christopher Fielder, field CTO for Arctic Wolf, SIEM platforms are primarily focused on aggregating data rather than analyzing or acting upon it. Without proper tuning, correlation rules, and skilled personnel to investigate alerts, SIEM alone is akin to having a security camera system without anyone monitoring the footage. Therefore, SMBs often opt for managed services to enhance their SIEM capabilities.
It’s essential to understand that SIEM needs to be complemented with expertise in configuring, maintaining, and updating detection logic, threat intelligence, and response workflows to maximize its effectiveness. This is where solutions like SOAR and MDR come into play, either working in conjunction with SIEM tools or as standalone alternatives. As Jackie Lehmann, director of security data and analytics for SentinelOne, points out, a robust MDR service can obviate the necessity for a separate SIEM, as MDR providers typically leverage SIEM-like capabilities to offer outsourced security operations.
While not all SMBs may require SIEM, many can benefit from its capabilities depending on their operational complexity, risk profile, and internal capacity. For instance, smaller organizations with limited sensitive data and straightforward IT infrastructures may find the cost and expertise needed for a SIEM outweighing the benefits. Conversely, SMBs with complex environments, global operations, regulatory obligations, or hybrid IT setups may find the visibility, correlation, and compliance support provided by SIEM indispensable.
In the context of compliance, SIEM proves valuable for SMBs subject to regulations like HIPAA, the Payment Card Industry Data Security Standard, and Sarbanes-Oxley. SIEM’s ability to store logs for extended periods enables easy access to past reports and aids in detecting policy violations during audits. While some MDR providers offer similar benefits, SMBs must ensure they can access logs easily for compliance purposes.
Ultimately, the focus should not solely be on deploying SIEM as a tool but on achieving enhanced visibility in threat detection and response. Whether through traditional SIEM platforms, MDR services, or security operations platforms, the goal remains early threat detection, effective investigation, and prompt response. SMBs opting for their SIEM deployment should prioritize data ingestion from critical assets and high-risk areas to manage costs effectively without compromising visibility where it matters most. The emphasis should always be on the outcome and maintaining cyber resilience in the face of evolving threats.
