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What is SIEM?

We are going to be discussing the following topics in this blog:

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What is SIEM (Security Information and Event Management)?

SIEM combines security event management (SEM) with security information management (SIM). SEM analyzes logs and events data and helps in providing threat monitoring, incident response, and event correlation. SIM, on the other hand, reports, collects, and analyzes log data.


SIEM Definition

SIEM is a software solution that helps monitor, detect, and alert security events. It presents a centralized view of the IT infrastructure of a company. It also helps cyber security professionals to gain insights into the ongoing activities in their IT environments.

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SIEM Process

Four steps are involved in the SIEM process:

SIEM Architecture

siem architecture

SIEM architecture is concerned with building SIEM systems and its core components. SIEM architecture includes the following components:

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How Does SIEM Work?

SIEM software is responsible for collecting and aggregating log data that is created by companies. This comes from network and security devices, host systems, etc.

After that, the SIEM software works at identifying, analyzing, and categorizing all events and incidents. The SIEM software usually has two main goals:

The need for better compliance management and greater security measures have been the major driving force behind the adoption of SIEM solutions. These days, large companies base their security operations center on SIEM.

SIEM Capabilities

siem capabilities

There are three critical SIEM capabilities:

There are a few additional features that are available in the SIEM security market:

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Career Transition

Top SIEM Tools

The following are some of the top SIEM tools in the market:

Benefits of SIEM

We cannot have a capable cybersecurity team without SIEM solutions. There are seven crucial benefits of a modern SIEM solution:

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Limitations of SIEM

The following are some of the limitations of SIEM tools:

How to Choose a SIEM Solution?

Before companies choose a SIEM solution, they need to define the scope and timeline of the project. This can be done by organizing workshops, either internally or externally, in collaboration with a SIEM partner. The first step toward identifying the scope and timeline is to identify a list of use cases. This will indicate the necessary log sources. Deciding on a timeline is also necessary to make sure that the SIEM security aligns with a company’s objectives.

There are four questions that companies need to consider while choosing a SIEM solution:

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SIEM Vendors

The SIEM market has some dominant vendors worldwide, namely IBM, Splunk, and HPE. There are some other big names in the market as well such as Intel, Alert Logic, ManageEngine, LogRhythm, Solar Winds, Trustwave, and Micro Focus.

When choosing a SIEM vendor, companies need to examine the vendors based on the organizational goals as this would help the companies figure out which vendor would suit them the best. If a company wants SIEM technology primarily for compliance purposes, then it would look for capabilities such as reporting; on the other hand, if a company wants SIEM technology to help with setting up a security operations center, then the company would look for other capabilities such as security monitoring and threat detection.

Steps for Planning a SIEM Project

steps for planning a siem project

There are three steps for planning a SIEM project:


SIEM is an important software solution for companies. We have seen how the SIEM process works and what are the important architectural components. There are some dominant SIEM tools around the world. Every SIEM system has benefits and drawbacks of its own. Companies can choose a SIEM platform according to their needs.

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