The Impact of IMSI Catcher Deployments on Cellular Network Security: Challenges and Countermeasures in 4G and 5G Networks

IMSI（国际移动用户识别码）捕获器，也称为“Stingrays”或“基站模拟器”，是一种对移动网络安全构成重大威胁的恶意设备[1]。IMSI捕获器可以拦截和操纵移动通信，危及移动设备及其用户的隐私和安全。随着4G和5G网络的出现，IMSI捕获器变得更加复杂，对移动网络安全提出了新的挑战[2]。本文概述了IMSI捕获器在4G和5G网络背景下部署对移动网络安全的影响。它讨论了IMSI捕获器所带来的挑战，包括未经授权的IMSI号码收集、通信拦截以及用户信息潜在的滥用。它还强调了IMSI捕获器部署的潜在后果，包括用户隐私的泄露、金融欺诈和未经授权的监视。本文进一步回顾了可以采用的对抗IMSI捕获器的对策。这些对策包括基于网络的解决方案，如信号分析、加密和身份验证机制，以及基于用户的解决方案，如移动应用程序和设备设置。本文还讨论了这些对策在4G和5G网络背景下的局限性和有效性。最后，本文确定了增强4G和5G网络时期对抗IMSI捕获器的移动网络安全的研究空白和未来方向。这包括需要改进加密算法、身份验证机制和检测技术，以有效地检测和防止IMSI捕获器的部署。本文还强调了监管和政策措施的重要性，以管理IMSI捕获器的部署和使用，以保护用户的隐私和安全。

IMSI catchers pose a significant threat to cellular network security, compromising the privacy and security of mobile devices and their users. The paper aims to provide an overview of the impact of IMSI catcher deployments on cellular network security in the context of 4G and 5G networks.

The paper discusses the challenges posed by IMSI catchers and reviews countermeasures that can be employed to mitigate the risks posed by IMSI catchers, including network-based solutions such as signal analysis, encryption, and authentication mechanisms, as well as user-based solutions such as mobile applications and device settings. The paper also identifies research gaps and future directions for enhancing cellular network security against IMSI catchers in the era of 4G and 5G networks.

The paper highlights the potential consequences of IMSI catcher deployments, including the compromise of user privacy, financial fraud, and unauthorized surveillance. It also emphasizes the importance of regulatory and policy measures to govern the deployment and use of IMSI catchers to protect user privacy and security.

Some related studies in this field include 'A Survey on IMSI Catcher and Its Detection Techniques' and 'Detecting IMSI Catchers Using Machine Learning Techniques.'