Security Information and Event Management


Read about CyberSecurity Trends for 2021

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Learn the difference between SIM AND SEM

Security Information and Event Management, SIEM for short, is a technology that has been around for more than a decade.  SIEM is a very important set of tools and procedures that are coupled together to inform your IT staff of threats, breaches, and procedures to handle such situations. Ideally, a 24 X 7 X 365 Security Operations Center (SOC) should be monitoring and responding to SIEM alerts. AT-NET has SIEM and SOC as our standard offering for our managed customers.

SIEM systems work by deploying multiple collection agents in a hierarchical manner to gather security-related events from end-user devices, servers, and network equipment, as well as specialized security equipment, such as firewalls, antivirus, or intrusion prevention systems (IPSes). The collectors forward events to a centralized management console, where security analysts sift through the noise, connecting the dots and prioritizing security incidents.

SIM (security information management) and SEM (security event management) are an interrelated set of practices that are referred to together as SIEM. SIM focuses on collecting a wide range of log data, which is useful for cyberforensics, internal security audits, and compliance reporting. On the other hand, SEM focuses on analyzing and correlating log data in real-time to find anomalies and improve threat response. These tools can offer advanced visualization, real-time awareness, and automation of IT operations.

Given the growth of cybercrimes and the advent of individuals, inside and outside of your systems, trying to gain access and or scrape any information they can gather to exploit, SIEM has become a requirement to running good cyber security systems. A good source of information about current cybercrime growth can be found at Cybercrime Magazine.

AT-NET is not as focused on the SIEM tools that we use, but on the processes, we use to keep our customers safe. The tools we use this year may not be the tools we use next year. If you wish to review some SIEM tools, you can find a review at Gartner. Gartner is a Research and Advisory company for many industries, especially for the IT industry. You may also call AT-NET for a no-cost discussion about SIEM.

SIEM Dashboard
SIEM Dashboard