Network security consists of the provisions and policies adopted by a network administrator to prevent and monitor unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources. It is necessary in organizations, enterprises, and other types of institutions and secures the network, as well as protecting and overseeing operations being done.
Network security involves the authorization of access to data in a network, which is controlled by the network administrator. Users choose or are assigned an ID and password or other authenticating information that allows them access to information and programs within their authority.
Network security covers a variety of computer networks, both public and private, that are used in everyday jobs conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access.
- Determining the feasibility of a particular set of attack vectors on your network
- Identifying higher-risk vulnerabilities that result from a combination of lower-risk vulnerabilities.
- Identifying vulnerabilities that may be difficult or impossible to detect with network scanning software
- Assessing the magnitude of potential business and operational impacts of successful attacks
- Testing the ability of network defenders to successfully detect and respond to the attacks
- Providing evidence to support increased investments in security personnel and technology