Expression of Concern : PRIFLEX: A Secure Federated Learning Framework for Evaluating Privacy Leakage and Defense in Cross-Modal Medical Data. Mesopotamian Journal of CyberSecurity, [S. l.], v. 2026, n. 1, p. 16–16, 2026. DOI: 10.58496/2026/016. Disponível em: https://journals.mesopotamian.press/index.php/CyberSecurity/article/view/1040. Acesso em: 2 mar. 2026.