This report delves into the critical realm of network security, examining the evolution of threats from early hacking attempts to contemporary challenges such as micro-ransomware and IoT botnets. It begins with a historical overview, tracing the origins of network security concerns and the development of countermeasures. The report then defines key security issues, including hacking, war driving, computer viruses, and denial-of-service attacks, along with their potential impact on organizations and individuals. Current trends, like exploits targeting Windows Subsystem for Linux and the rise of IoT botnets, are also analyzed. The technical aspects of network security, including the technologies, processes, and devices involved, are discussed, along with target platforms and potential advantages and disadvantages of various security measures. The report concludes by summarizing the importance of network security for organizations, developers, and individuals, emphasizing the need for proactive measures and ongoing vigilance in the face of evolving threats. Finally, it lists possible mitigation strategies that can be employed by both individuals and companies to combat the security issues.