The document discusses a leading telecommunications operator's deployment of an Intrusion Detection System (IDS) to enhance their security posture against evolving threats like call interception and data breaches. Despite initial challenges with their existing security rules, the implementation of Securitygen IDS provided continuous network monitoring, significantly reducing high severity attack attempts and improving compliance and protection against advanced attacks. The case study highlights the importance of automation and analytics in sustaining a robust security framework for next-generation telecom operations.