Initially, Security Information and Event Management (SIEM) systems were adopted by large enterprises mainly for fulfilling compliance requirements. However, nowadays SIEM has seen much more significant motives for an adoption. As cyber threats are becoming more powerful and advanced, many organizations are focusing their efforts on detecting cyber attacks and security breaches before it gets severe and provide appropriate responds to minimize the damage. SIEM system is used to assist in early detection and serves the purposes such as data collection, storing, analyzing, investigation, and report on logs and other data for incident response, forensics, and regulatory compliance. Now, Small and Medium Businesses has also begun implementing SIEM, enabling deployments by organizations with limited security resources that need improvement at monitoring and breach detection systems. An organization which adopt SIEM system is likely to have firm centralized logging capabilities to create reports such as those necessary for most compliance reporting efforts.