Security Information and Event Management

Manage your network security in one place. Discover SIEM solutions.

What is a SIEM?

A SIEM (Security Information and Event Management) system is an advanced IT security management system that combines monitoring, analysis, and event reporting functions. Modern SIEM systems introduce innovations in IT security management, offering a reliable Big Data architecture, process automation, and the ability to integrate with other tools, making them essential for effective monitoring and response to threats.

With SIEM, organizations can detect irregularities in real-time, correlate events, and generate reports needed to meet regulatory requirements such as GDPR or NIS2. SIEM solutions have evolved from simple log collection systems to complex platforms using artificial intelligence (AI) and machine learning (ML) that help predict and prevent threats. As a result, they can be a solid pillar of your organization’s security strategy.

Choose the Right SIEM System

SIEM Definition

A SIEM (Security Information and Event Management) system is an advanced IT solution that combines the functions of monitoring, analyzing and managing information and security events in an organization's network. Its main task is to provide comprehensive protection against cyber threats by detecting and responding to them in real-time. SIEM systems collect data from various sources, such as network devices, servers, applications and endpoints, and then analyze it to identify potential threats. This allows organizations to quickly respond to security incidents, minimizing the risk and effects of attacks. SIEM solutions are a key element of a security strategy, enabling effective management of security events and ensuring compliance with regulations such as NIS2, DORA or GDPR.

Key Functionalities of a SIEM System

Security Information and Event Management software is an advanced security system that, in its basic functionality, consolidates data from various sources, such as network devices, applications, operating systems or end devices. Centralization of logs allows for more effective management of the huge amount of information generated by the IT infrastructure. This aggregation allows for quick searching and analysis of data to identify security incidents.

SIEM then correlates events: it analyzes the relationships between seemingly unrelated events and identifies patterns of potential threats. For example, combining unauthorized access logs with unusual network traffic, which indicates an attempted attack, provides a more comprehensive approach to threat detection.

SIEM also offers real-time monitoring, which is invaluable in a rapidly changing IT environment. Constant supervision of the infrastructure allows for the detection of anomalies such as unauthorized access attempts, unusual network traffic patterns, or suspicious user activity. Early warning of such incidents allows security teams to react quickly, minimizing the potential impact of an attack.

SIEM also supports organizations in reporting and compliance with regulations. The reports generated allow for compliance with standards such as GDPR, PCI-DSS, and NIS2. This allows companies to more easily pass audits and demonstrate compliance with security standards.

How does Security Information and Event Management work?

Security Information and Event Management Use Cases

SIEM systems are used across industries and organizations to ensure network security and protect data. SIEM use cases include:

Monitoring networks and systems to detect threats: SIEM systems enable continuous monitoring of IT infrastructure, allowing for the rapid detection of unauthorized activities and anomalies. This allows security teams to respond to potential threats immediately.
Analyzing data from various sources to identify potential threats: SIEM consolidates data from various sources, such as logs from network devices, servers, and applications, enabling comprehensive analysis and identification of patterns that indicate threats.
Managing security information and events to provide comprehensive protection: SIEM systems automate security event management processes, from detection to escalation and response, which increases the efficiency of SOC teams.
Implementing a security strategy to prevent cyberattacks: SIEM helps organizations create and implement security strategies that encompass both prevention and incident response. This allows companies to better protect their assets from increasingly advanced threats.

SIEM systems are an invaluable tool in IT security management, enabling organizations to effectively monitor, analyze, and respond to threats real-time.

Choose the Right SIEM System

Why is it worth implementing SIEM?

Real-time threat detection

A SIEM system allows for quick identification and analysis of suspicious events, which minimizes incident response time.

Data centralization

A SIEM system collects logs and data from various sources in one place, making management and analysis easier.

Meeting regulatory requirements

The SIEM platform generates audit reports that help organizations meet legal requirements and security standards.

Reducing operational costs

Automating data analysis processes allows IT teams to manage resources more effectively.

Support for SOC teams

A SIEM system supports Security Operations Center (SOC) teams by filtering false alarms and prioritizing the most important events.

Example scenarios for selecting a SIEM system

A mid-sized company with distributed IT teams

Wybór: Rozwiązanie chmurowe, takie jak Splunk.
Powód: Łatwość wdrożenia i skalowalność.

Large organization with multiple IT systems and high regulatory requirements

Wybór: Rozbudowany system SIEM integrujący się z SOAR, np. IBM QRadar.
Powód: Potrzeba zaawansowanej analityki i automatyzacji reakcji na zagrożenia.

Small business with limited budget

Wybór: FortiSIEM.
Powód: Niższy koszt wdrożenia przy zachowaniu kluczowych funkcjonalności.

SIEM vs. SOC: How do they work together?

SIEM connects with SOAR to create an integrated system that increases the level of IT security, which is crucial for SOC (Security Operations Center) teams responsible for monitoring and responding to security incidents. SIEM provides real-time threat intelligence, automatically analyzes logs, and escalates the most important incidents, allowing SOC teams to focus on the most serious cases.

While SIEM automates many processes, the role of SOC analysts remains crucial – they make strategic decisions and conduct in-depth analysis of more complex incidents.

SIEM and SOAR as complementary securitysystems

SIEM vs. SOAR: What’s the difference?

SIEM (Security Information and Event Management) and SOAR (Security Orchestration, Automation, and Response) are complementary solutions that have different functions:

SOAR automates incident response, taking actions such as blocking IP addresses or resetting passwords.
SIEM focuses on collecting, analyzing, and correlating data from various sources, integrating security information management functions.

Together, they create a powerful duo that allows to detect threats but also to respond to them quickly, minimizing the risk and effects of attacks.

SIEM solutions overview

Splunk

Splunk is one of the most advanced SIEM solutions on the market, valued for its flexibility, scalability, and advanced analytical functions.

Splunk Key Features

Advanced Analytics: Splunk uses artificial intelligence and machine learning
Intuitive interface makes it easy to configure and manage the system.
Broad Compatibility: Integration with a variety of systems and applications.
Compliance Reporting: Support for regulations such as GDPR and PCI-DSS.

Where does Splunk fit?

Large enterprises composed of many IT systems.
Companies requiring fast analysis of large volumes of data.
Organizations looking for a tool that can be integrated with other solutions, such as SOAR.

Splunk Security Information and Event Management solution 1

Splunk Security Information and Event Management solution 3

Splunk Security Information and Event Management solution 2

Source: splunk.com

IBM QRadar

IBM QRadar is an advanced SIEM system that stands out for its ability to perform comprehensive data analysis in real time and advanced event correlation functions. Thanks to its flexibility and integration with other security solutions, QRadar is a popular choice among large enterprises and organizations with high requirements for IT security management.

QRadar Key Features

Advanced event correlation: QRadar analyzes and combines data from various sources to quickly detect threats. It uses built-in analytical rules and machine learning to identify unusual behavior.
Integration with the IBM ecosystem: The ability to connect QRadar with SOAR (Resilient) tools and IBM Security cloud solutions provides comprehensive incident management.
Real-time monitoring: The system allows you to constantly track anomalies and generate detailed security alerts.
Compliance reporting: QRadar supports the generation of reports adapted to regulations such as GDPR, HIPAA or PCI-DSS.
Customization to customer needs: It offers both on-premises and cloud implementations, so you can customize the solution to specific requirements.

Where does QRadar fit?

IBM QRadar is an ideal choice for large organizations composed of many IT systems, such as financial institutions, technology enterprises or public sector companies. QRadar is particularly useful where high scalability and integration are required right with tools that automate incident response.

IBM QRadar SIEM (part of the IBM QRadar suite)

Source: ibm.com

FortiSIEM

FortiSIEM is a SIEM solution from Fortinet that combines security monitoring, IT infrastructure management, and incident response automation. With full integration with the Fortinet ecosystem and support for a wide range of devices and applications, FortiSIEM is particularly valued by small and medium-sized businesses looking for an affordable solution.

FortiSIEM Key Features

Broad compatibility: It supports thousands of devices, applications, and operating systems, making it a universal tool in various IT environments.
IT monitoring and management: In addition to SIEM functions, it also offers tools for managing the performance and availability of IT infrastructure.
Reporting and compliance: Generates reports for audits and regulations such as GDPR, NIS2, and PCI-DSS.
Cost-effective: FortiSIEM offers a competitive price, making it an attractive choice for organizations with limited budgets.

Where does FortiSIEM fit?

FortiSIEM is a great solution for small and medium-sized businesses and organizations using Fortinet solutions. Its affordability and ease of implementation make it a great fit for environments with moderate

Source: fortinet.com

What solutions to complement SIEM with?

SOAR: Automate incident response based on data provided by SIEM systems that integrate artificial intelligence with IT security systems.
EDR (Endpoint Detection and Response): Monitor endpoint devices, which are often the first target of attacks.
Threat Intelligence Platforms: Supplement SIEM with real-time data on external threats.
NDR (Network Detection and Response): Analysis of network traffic to detect anomalies and attacks.
Cloud security solutions: Tools such as AWS GuardDuty or Azure Sentinel that integrate with SIEM and protect cloud environments.

Build a secure IT architecture

When to consider implementing SIEM?

The decision to implement SIEM becomes necessary when an organization faces challenges that require a more advanced approach to IT security management. Below are several premises that should encourage IT departments to invest in SIEM.

Rising cyberthreats

When a company notices increasingly frequent attempted attacks, data breaches, or unauthorized access to its systems, it needs a tool that will allow for quick detection and response to such threats. SIEM, analyzing data in real time, allows for early identification of anomalies and taking appropriate actions.

Growing complexity of IT infrastructure

If your organization’s teams use multiple systems, applications, and devices, manual log management becomes virtually impossible. SIEM centralizes data from various sources, which allows for a comprehensive view of the infrastructure’s security status and significantly facilitates analysis.

The company operates in industries subject to restrictive regulations, such as GDPR, NIS2, and PCI-DSS.

In this case, SIEM not only facilitates compliance with legal requirements but also supports the preparation of audits and generates compliance reports, which allows you to avoid potential penalties and loss of customer trust.

Lack of effective real-time monitoring

When a company still relies on manual log analysis, the risk of missing critical events is high. SIEM automates this process, enabling immediate identification and escalation of important incidents, which significantly improves response time.

Generating more and more data

Large companies that process millions of events daily need a solution capable of fast and effective analysis, without which protection against threats becomes practically impossible. In these cases, SIEM is the answer to the problem of efficiency in managing security on an industrial scale.

How to choose Security Information Management System for your organization?

Determine the organization’s needs
- Company size and IT infrastructure: Small and medium-sized businesses may choose simpler, less expensive systems, while large corporations require scalable solutions.
- Industry regulations: Make sure the SIEM meets the specific audit requirements for your industry.

Review the system’s functionalities
- Event correlation: Can the system combine data from multiple sources to identify potential threats?
- Real-time monitoring: Does the system detect anomalies and generate alerts in real time?
- Reporting: Does the tool offer advanced compliance and security reporting?
- AI/ML analytics: Does the SIEM use artificial intelligence to predict threats?

Consider integration with other systems and tools. Does the system integrate with existing solutions such as SOAR, EDR, NDR, or Threat Intelligence platforms?

Pay attention to scalability and performance. The system should be able to handle increasing numbers of logs and events as the company grows.

Consider the implementation model
- On-premises: For companies that prefer full control over their data.
- Cloud: For organizations looking for scalable and easy-to-maintain solutions.
- Hybrid: For companies with mixed IT environments.

Consider costs. Compare the costs of licensing, implementing, and maintaining different solutions. Remember that the savings from reducing risk can compensate for the investment in SIEM.

Research opinions and references. See how the system works in similar companies. Read reviews and case studies.

Protect your data and infrastructure with SIEM - Contact us!

Need a reliable system for monitoring and managing IT security? Trust the experts at Grandmetric! We offer professional support in selecting and implementing a SIEM solution tailored to your company's needs.

Let us analyze your organization's requirements and select the technology that will effectively protect your infrastructure from threats. Our team will help you not only configure and integrate the SIEM system with your existing infrastructure but also with its ongoing operation - from monitoring to incident resolution support.

Take advantage of our experience and provide your company with a modern, reliable solution that will meet the challenges of today's reality. Contact us today and start working with us!