Journal Innovations Computer Science Volume 4 Issue 1 published in May 2025 features five research studies exploring the implementation of cutting-edge information technology in cybersecurity, data analysis, and digital service transformation domains. The web-based network anomaly detection system research utilizing Security Information and Event Management (SIEM) approach for disaster recovery centers at the Indonesian Attorney General Training Agency strengthens institutional cybersecurity infrastructure. The study applying K-Means and Dempster-Shafer algorithms for market segmentation in local product marketing strategies develops novel approaches in consumer behavior analysis. The design of web-based Toddler Health Card (KSB) application using Rapid Application Development (RAD) method as a case study at Posyandu Kenanga, Depok facilitates digitalization of public health services. The analysis of deep learning method development for performance optimization of complex data classification models advances theoretical frameworks in machine learning. The design of web-based wedding organizer service system application using waterfall method for CV. Ruang Event in Bandar Lampung applies system development methodologies in the creative sector. These five studies demonstrate the convergence of diverse system development methodologies with machine learning and cybersecurity technologies to support sustainable digital transformation across various strategic sectors.