Telecommunication companies have faced a surge in cyberattacks, prompting a need for more advanced Security Information and Event Management (SIEM) systems that go beyond traditional capabilities. With the increasing adoption of 5G and cloud technologies, these companies require SIEM solutions that offer flexible deployment models, cloud-native security, automation, and generative AI to manage the expanding and complex attack surfaces effectively. Modern SIEMs should integrate diverse data sources and provide real-time analytics to improve threat detection and response times. Elastic Security emphasizes the importance of a unified monitoring system combining SIEM, Endpoint Detection and Response (EDR), and cloud security to enhance protection and streamline security operations. This approach, supported by advanced machine learning and AI tools, aims to equip telecom security teams to handle both current threats and future challenges, ensuring robust protection for critical services and data.