This report provides a comprehensive analysis of network security threats faced by Gigantic Corporation. It identifies key threats such as malware, deliberate injections, and hackers, and explores the potential damages, including the stealing and destruction of confidential information. The report highlights the challenges the corporation faces, such as limited internet access and expenses related to security measures. It then suggests mitigation and countermeasure strategies, including avoiding the BYOD policy, implementing system firewalls, changing the system architecture, network encryption, and employee activity monitoring. The report concludes that Gigantic Corporation needs to implement these measures to prevent cyber attacks and protect its data and confidential information.