AHMAD SAIM; FAISAL MEHMOOD. A Study on Firewall Effectiveness Against Modern Cyber Threats: A Critical Review of Technologies, Failure Modes, and Evaluation Approaches. Spectrum of Engineering Sciences, [S. l.], v. 4, n. 3, p. 1108–1129, 2026. Disponível em: https://www.thesesjournal.com/index.php/1/article/view/3998. Acesso em: 13 nov. 2026.