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How can you ensure that your SIEM system is effective?

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A security information and event management (SIEM) system is a powerful tool for collecting, analyzing, and responding to security events from various sources in your network. However, a SIEM system is not a magic bullet that can automatically protect your organization from all threats. You need to ensure that your SIEM system is effective by following some best practices and avoiding common pitfalls. In this article, we will discuss how you can do that.

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Nikoloz K.

Cybersecurity Strategist | Empowering Future Cybersecurity Leaders | Enabling Secure Innovation for Startups &…
Udochi O.

Senior Service Engineer, Azure Edge + Platform | Technologist
Christos Gourzoulidis

Senior Cloud Security Consultant at NVISO Security, MSc InfoSec, ISO27001 LA

1 Choose the right SIEM system

The first step to ensure that your SIEM system is effective is to choose the right one for your needs and goals. There are many SIEM products and services available in the market, each with different features, capabilities, and costs. You should evaluate them based on factors such as scalability, compatibility, usability, performance, and support. You should also consider your budget, resources, and compliance requirements. Ideally, you should choose a SIEM system that can integrate with your existing security tools and infrastructure, provide real-time and historical analysis, and offer customizable and actionable alerts.

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Immanuel Raj

Cyber Security Senior Manager at Standard Chartered
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Other important consideration includes: 1. Future Resilient Event Storage - Events and logs over time will increase storage needs. 2. Forensic capability - forensic capabilities will enable suspicious or threatening events to be detected in real time. 3. Machine Learning - Ability to incorporate machine learning aspect will facilitate security analytics and reduce effort spent on routine tasks to minimise resources. 4. Report capability with minimal manual setup - The tool with various reporting template and insights will enable reports to be catered for different stakeholders in a short time. 5. Expertise and Experience - Important to look for provider with proven track record in handling and managing SIEM solutions.

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2 Configure and tune your SIEM system

The second step to ensure that your SIEM system is effective is to configure and tune it properly. This involves setting up the data sources, filters, rules, thresholds, dashboards, and reports that suit your environment and objectives. You should also regularly update and optimize your SIEM system to reflect the changes in your network, threats, and regulations. You should avoid overloading your SIEM system with irrelevant or redundant data, as this can affect its performance and accuracy. You should also avoid underutilizing your SIEM system by ignoring or dismissing its alerts, as this can expose you to risks.

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Udochi O.

Senior Service Engineer, Azure Edge + Platform | Technologist
(已编辑)
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One basic step that is very important for your SIEM to be operative, and effective is to make sure that you have log events, generating consistently and frequently to be able to populate the tool. You want to make sure the logs are coming in unified so that field value pairs are able to be extracted and searched upon in the same tool.

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3 Train and empower your SIEM team

The third step to ensure that your SIEM system is effective is to train and empower your SIEM team. Your SIEM team is the group of people who are responsible for managing, monitoring, and responding to your SIEM system. They should have the necessary skills, knowledge, and tools to perform their tasks effectively. You should provide them with regular training and education on the latest security trends, threats, and best practices. You should also empower them with clear roles, responsibilities, and procedures to handle different types of security events and incidents. You should also foster a culture of collaboration and communication among your SIEM team and other stakeholders.

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Christos Gourzoulidis

Senior Cloud Security Consultant at NVISO Security, MSc InfoSec, ISO27001 LA
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Effective training of the SIEM team is crucial for optimizing the effectiveness of the SIEM system. A comprehensive training curriculum should be developed to cover SIEM fundamentals, like log collection and analysis, threat detection and incident response, security monitoring, and threat intelligence. Moreover, different training methods, such as instructor-led workshops, online courses, hands-on labs, and self-paced e-learning modules, should be also taken into account. Also, continuous learning should be encouraged through industry conferences, workshops, and webinars. Lastly, opportunities for industry certifications can further enhance the expertise and knowledge of the SIEM team.

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4 Review and improve your SIEM system

The fourth step to ensure that your SIEM system is effective is to review and improve it periodically. You should measure and evaluate the performance, efficiency, and value of your SIEM system using relevant metrics and indicators. You should also solicit and act on the feedback and suggestions from your SIEM team and other users. You should identify and address the gaps, issues, and challenges that affect your SIEM system. You should also look for opportunities to enhance and expand your SIEM system with new features, functions, and integrations.

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Nikoloz K.

Cybersecurity Strategist | Empowering Future Cybersecurity Leaders | Enabling Secure Innovation for Startups & Enterprises
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In my experience, to enhance your SIEM's effectiveness, there are actionable steps you should consider: - Regularly evaluate and tune your SIEM's data processing capabilities. Remove unnecessary ingestions and queries to free up capacity for most critical use cases. - Conduct periodic audits of storage. Scale up storage solutions as needed and refine data indexing strategies to facilitate efficient data retrieval. - Schedule routine assessments of use cases. Refine them to align with current cyber threats and business objectives. - Continuously integrate high-quality data sources into your SIEM. Incorporate the latest threat intelligence feeds, employ machine learning and integrate UEBA for more sophisticated behavior-based analytics.

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5 Leverage external resources and support

The fifth step to ensure that your SIEM system is effective is to leverage external resources and support. You should not rely solely on your own capabilities and expertise to manage and operate your SIEM system. You should also seek and use the resources and support that are available from your SIEM vendor, partner, or provider. They can offer you technical assistance, guidance, and advice on how to optimize and troubleshoot your SIEM system. They can also provide you with updates, patches, and upgrades to keep your SIEM system up to date and secure.

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6 Align your SIEM system with your security strategy

The sixth and final step to ensure that your SIEM system is effective is to align it with your overall security strategy. Your SIEM system should not be a standalone or isolated solution that operates in a silo. It should be a part of your comprehensive and coherent security strategy that covers all aspects of your organization's security posture. You should align your SIEM system's goals, objectives, and outcomes with your security strategy's vision, mission, and values. You should also integrate your SIEM system with your other security processes, policies, and controls.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Lahiru Livera

???????????????? ?????? ?????????????????????????? ?????????? ?? Partner - Technology Advisory | Chief Information Officer (CIO) | Cyber Security Consultant
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Here are some tips and best practices to ensure that your Security Information and Event Management (SIEM) system is effective: - Define the requirements for SIEM deployment based on your goals and objectives. - Do a test run of your SIEM system in a simulated or isolated environment before deploying it in production. - Gather sufficient data from reliable, consistent, and normalized sources to provide a comprehensive view of your network activity and security posture. - Have an incident response plan to guide your actions when a security incident occurs. - Keep improving your SIEM system by regularly reviewing and updating your configuration, rules, and policies.

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How can you ensure that your SIEM system is effective?

1

2

3

4

5

6

7

1 Choose the right SIEM system

2 Configure and tune your SIEM system

3 Train and empower your SIEM team

4 Review and improve your SIEM system

5 Leverage external resources and support

6 Align your SIEM system with your security strategy

7 Here’s what else to consider

Information Security

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How can you ensure that your SIEM system is effective?

1

2

3

4

5

6

7

1 Choose the right SIEM system

2 Configure and tune your SIEM system

3 Train and empower your SIEM team

4 Review and improve your SIEM system

5 Leverage external resources and support

6 Align your SIEM system with your security strategy

7 Here’s what else to consider

Information Security

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