A Comprehensive Review of Information Security Challenges and Countermeasures in Software Systems

Software systems remain a primary target for cyber threats due to their growing complexity, extensive third-party dependencies, and rapid development cycles. This paper conducts a systematic literature review of information security challenges and countermeasures in software systems, drawing on peer-reviewed studies published in high-impact journals. The review examines vulnerabilities arising across the software development lifecycle, from incomplete security requirements and design flaws to implementation errors, supply-chain risks, and operational weaknesses. Particular attention is given to emerging issues linked to agile practices, DevSecOps adoption, cloud-native architectures, and code generated by large language models. Countermeasures are analyzed in parallel, covering secure development methodologies, static and dynamic analysis techniques, threat modeling, cryptographic controls, and machine-learning approaches for vulnerability detection. The synthesis shows that while a broad range of technical and process-oriented defenses has been proposed, many lack rigorous empirical validation, struggle with integration into continuous delivery pipelines, and offer limited coverage of supply-chain and AI-related attack surfaces. Persistent gaps include inconsistent threat prioritization, insufficient attention to residual risk, and the absence of standardized metrics for measuring countermeasure effectiveness. The findings provide a structured foundation for researchers seeking open problems and for practitioners aiming to strengthen security assurance throughout the software lifecycle.

کلیدواژه ها:

Information security ، software systems ، security challenges ، countermeasures ، secure software development lifecycle ، vulnerability detection