SEGURANÇA E VULNERABILIDADES EM REDES WI-FI E MÓVEIS: RISCO E PROTEÇÃO DE DADOS EM TRASAÇÕES BANCÁRIAS

Abstract

The growing use of Wi-Fi networks on mobile devices has facilitated access to digital services, including banking transactions, but it has also increased exposure to cyber threats. In this context, this article investigates the main vulnerabilities of Wi-Fi networks and their impact on the security of financial transactions carried out via smartphones. The objective is to identify the most common risks, analyze the weaknesses in security protocols, and propose mitigation measures. The methodology is based on a literature review of recent publications in the fields of information security, wireless networks, and cybersecurity, focusing on case studies and technical guidelines. The results reveal the occurrence of attacks such as Man-in-the-Middle, packet interception, and the exploitation of unsecured public networks, highlighting the fragility of unprotected connections. The research also emphasizes the effectiveness of practices such as multi-factor authentication, VPN use, and advanced encryption in protecting sensitive data. It is concluded that, in addition to implementing technological solutions, raising user awareness about risks and best practices is essential to reduce vulnerabilities and ensure the security of information during banking transactions over Wi-Fi networks.