Despite the numerous pompous statements regarding 5G, it is indisputable that 5G creates a radical shift in telecommunications. The main reason is that 5G is an enabler of numerous applications we have long envisioned and either simulated or implemented in test environments, partially or on a smaller scale. 5G will soon unlock the potential of smart cities, industry 4.0, and IoT, to name a few. However, a crucial question is how much we can trust this technology. Since this technology will soon become the core infrastructure for all of the above, it is critical to understand the fundamental security mechanisms that comprise this technology and the guarantees they provide to assess the potential risks we are exposed to. This work follows a non-technical yet bottom-up approach to introduce the reader to the core security mechanisms and establish a baseline for the security of 5G, to demystify the principal notions and processes. Based on the above, we streamline future directions and highlight possible threats.

翻译：尽管在5G方面有许多自夸的言论,但无可争议的是,5G在电信方面造成了根本性的转变,主要原因是5G是我们长期设想并在试验环境中部分或较小规模地模拟或实施的许多应用的促进因素。5G很快将释放智能城市、工业4.0和IoT的潜力。然而,一个关键问题是,我们能够在多大程度上信任这一技术。由于这一技术不久将成为上述所有技术的核心基础设施,因此,必须理解构成这一技术的基本安全机制以及它们为评估我们面临的潜在风险所提供的保证。这项工作遵循非技术性但自下而上的方法,向读者介绍核心安全机制,并为5G的安全建立基线,以解开主要概念和进程。基于上述,我们简化未来方向,突出可能的威胁。