What are computer networks?
A computer network is a coordinated system of computers that share resources. These resources are provided by a redistribution point or endpoint called a network node. The computers use common communication protocols over digital interconnections to communicate with each other. Computer networks are an integral part of telecommunication systems. The connections can consist of telecommunication network technologies that are based on physically wired, optical, and wireless radio-frequency methods.
Computer networks and Network Security
Network security consists of many layers and an attack can happen in any one of these layers. These networks usually consist of three controls
- Physical network security
- Technical network security
- Administrative network security
Physical network security: this is designed to keep the system network safe from unauthorized personnel from breaking into the network components that include OUI, Fiber optic cable, etc.,
Technical network security: this protects the data that is stored in the network or which is transmitted throughout it. It ensures no one gets away with any unauthorized activities apart from the user themself.
Administrative network security: this includes all the policies and procedures that need to be followed by the authorized users for other personnel.
What is Data Masking?
Data masking is a very important concept to keep data safe from any breaches. Especially, for big organizations that contain heaps of sensitive data that can be easily compromised. Details like credit card information, phone numbers, house addresses are highly vulnerable information that must be protected. To understand data masking better we first need to know what computer networks are.
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