Currently, enterprise awareness on cyber threats is high, and organizations are investing considerably in security solutions and the latest security tools. Nonetheless, the rising incidence of high-profile and successful attacks clearly demonstrate the need for more effective threat detection and management of cyber threats.
The primary reason that many solutions remain ineffectual against emerging threats is the inherent lack of integration and synergy between the several security functions within the organization and the myriad tools spread across various layers—physical, network, user, data, applications, etc. An efficacious cyber security strategy demands a unified and holistic approach to security monitoring and management, where the data available across layers and tools is leveraged in a consolidated manner to develop actionable intelligence and an overall threat and response model.
This need can be adequately fulfilled by a Security Information and Event Management (SIEM) solution.
The SIEM system is a hybrid one that integrates two complementary solutions: Security Information Management (SIM) systems that enable regulatory compliance by consolidating logs, analyzing data and reporting findings; and Security Event Management (SEM) systems that detect and monitor threats and security events in real-time. An SIEM system, thus, facilitates the detection of events of interest by providing a near real-time analysis of security information and by analyzing log records and data aggregated from various sources.
An SIEM system is an over-arching one that monitors organizational security in a holistic manner by:
An SIEM system can thus improve the effective detection of events of interest and provide actionable intelligence to deal with evolving cyber security threats. Keep in mind though, that an SIEM solution is only as good as the security analyst operating and configuring it. The best security analysts have a deep and comprehensive understanding of the organization’s IT infrastructure, the environment you operate in, and emerging threats. Moreover, an SIEM solution should not be considered a one-time solution; rather all security, governance and risk assessment processes require continuous monitoring, and should be regularly updated to incorporate emerging technologies and battle evolving threats.
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