Security Reinforcement: An Overview of Multilevel Authentication Techniques

Authentication mechanisms play a critical role in safeguarding against unauthorized access in today's mobile operating systems. This paper presents a comprehensive review of existing authentication methods tailored for mobile devices, aiming to elucidate their functionalities and security considerations. The study meticulously examines a spectrum of authentication techniques available for smart devices, shedding light on their respective features and implementation within mobile operating systems. Additionally, it scrutinizes the associated security risks specific to these methods. By providing an in-depth analysis of prevalent authentication approaches, this research aims to offer valuable insights into the landscape of available techniques for securing mobile devices, aiding both users and practitioners in making informed decisions regarding their adoption.