Cyber networks are intricate systems that can be attacked by viruses, hackers, and other security risks. Engineers identify and reduce potential security vulnerabilities in order to make these networks safer. To find potential dangers and weaknesses in the cyber network, engineers first do a risk assessment. To find potential security holes in the network, they employ a variety of tools and techniques, including vulnerability scanners, penetration testing, and threat modeling. Access control methods are also used by engineers to limit access to private data and network resources. This includes methods such as role-based access control, two-factor authentication, and privilege escalation management. Engineers monitor network traffic with the help of intrusion detection and prevention systems (IDS/IPS) to find potential security risks. To find possible security threats and stop them from doing harm, these systems employ a variety of techniques such anomaly-based detection, signature-based detection, and machine learning algorithms. Organizing the network into smaller, easier-to-manage subnetworks is one efficient method for enhancing cybersecurity. By preventing attackers from traveling laterally across the network, this lessens the effect of a security breach. Network segmentation is implemented by engineers using tools like network firewalls and virtual local area networks (VLANs). Data in transit and at rest can be protected via encryption. Engineers encrypt data using a variety of encryption protocols and algorithms, including SSL/TLS, AES, and RSA, to guard against unauthorized access and data breaches. Engineering teams also frequently update software and firmware with security updates and bug fixes to keep the network secure. To find and fix network vulnerabilities, they also employ vulnerability management technologies. Engineers evaluate, keep an eye on, and defend the network against potential security risks, they employ a number of approaches, tools, and technologies. They may make the network safer for users as well as businesses by putting these measures in place to lower the chance of cyberattacks, data breaches, and other security issues. They are an essential part of a network.