This study assessed information resource security in academic libraries, focusing on challenges, staff ICT competence, and sustainablemanagement strategies at Adamawa State University, Mubi. A descriptive survey design was adopted, and data were collected from 46 professional and paraprofessional library staff using a structured questionnaire on a five-point Likert scale. Descriptive and inferential analyses, including Pearson correlation and multiple regression, were employed. Findings revealed that the library implements essential security measures such as access controls, surveillance systems, antivirus software, and routine data backups. Staff demonstrated high ICT competence (M = 3.69, SD = 0.46), and security strategies were rated effective (M = 3.92, SD = 0.37). However, moderate challenges limited ICT infrastructure, inadequate funding, and insufficient training (M = 2.75, SD = 0.58) hinder sustainable resource management. Correlation analysis showed positive relationships between ICT competence, security strategies, and effective resource management, while challenges exhibited a significant negative relationship (r = –0.652, p < 0.05). Regression results indicated that ICT competence, security strategies, and challenges jointly explained 62.1% of the variance in sustainable information management (R² = 0.621).The study concludes that sustainable information resource security depends on staff competence, effective strategies, and adequate infrastructure. It recommends continuous ICT training, improved policy enforcement, and enhanced funding to strengthen long-term management of library resources.