Big Data and IT Security – SIEM as an Analysis Tool

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Over the last few years, gleaning useful information from massive amounts of data has also become more difficult for IT security and approaches to Big Data and information analysis are a critical topic in this sector. The number of users, end devices, applications and log files are constantly on the rise. At the same time, attackers are becoming more sophisticated and professional while constantly adapting their strategies. Companies are now facing a completely new level of risks and challenges to their IT security operations.

Frequently companies have more than enough data on security events, including successful penetrations and potential vulnerabilities. Enormous volumes of data are generated by network components, storage systems or applications. Security threats buried among this data must be taken seriously, however attacks often remain unnoticed or they are not discovered in time due to a lack of structured data. Analyzing and interpreting this data and deploying a rapid response is almost impossible without specialist software.

Security Information and Event Management (SIEM) systems are designed to improve the analysis and management of attack indicators by establishing connections between events from the collected data and issuing warnings or reports to IT administrators based on a defined policy. This helps companies to meet compliance requirements and simplifies the documentation and archiving of security relevant events. Automated responses can even be generated and set to ensure a rapid defense response.

SIEM and Remote Access

External access to company networks is one of the most critical areas linked to IT security. Attackers often attempt to exploit remote connections to gain access to company data. Information is available in user and access data from log files which can help companies to pinpoint successful or unsuccessful attacks.

Analyzing unsuccessful login attempts or suspicious data transfers in internal networks can help companies to identify and prevent unauthorized access. The goal is to minimize any vulnerabilities or misconfigurations related to VPN or RDP access and to ensure that only authorized users gain access to the company network with secure authentication methods and protected end devices with the latest security updates.

To achieve this, all VPN components should deliver log files to the SIEM system in a structured form. It is irrelevant whether the VPN components terminate the remote connection when suspicious activity is detected or whether the connection is terminated by the SIEM system.

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  1. Threat Intelligence-as-a-Service brings SIEM within reach of SMEs | VPN Haus - […] Security information and event management (SIEM) systems provide a valuable tool to gather threat intelligence through activities logged from…

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