Expression of Concern: A Novel Diffusion-Based Cryptographic Method for Cyber Security. Mesopotamian Journal of CyberSecurity, [S. l.], v. 2026, n. 1, p. 14–14, 2026. DOI: 10.58496/2026/014. Disponível em: https://mesopotamian.press/journals/index.php/CyberSecurity/article/view/1038. Acesso em: 28 feb. 2026.