Security Information and Event Management (SIEM) tools play a crucial role in monitoring IT environments by analyzing logs and event data to detect threats and facilitate incident response. As organizations increasingly value data, implementing SIEM tools becomes essential to protect valuable assets from potential security incidents. Companies often debate between managed SIEM systems, which offer immediate but limited solutions, and open-source options, which can be customized but require significant effort and overhead to deploy and maintain. Key considerations when selecting an open-source SIEM tool include its compatibility with the organization's infrastructure, its capabilities for log management and incident response, and the potential costs associated with customization and maintenance. Additionally, the tool's ability to provide security analytics, automation, and integration with other systems is vital for effective incident management. Despite the growing prevalence of open-source SIEM tools, these solutions often necessitate additional planning and development to meet an organization's specific security needs and to ensure comprehensive data analysis and threat detection.