Computer security is a discipline supposedly concerned with the integrity and confidentiality of information stored in a computer system. In any case, there is no technique capable of ensuring the inviolability of a system. At present, security is a major issue for societies as well as for the actors around it.
It should no longer be confined solely to the role of the computer scientist. Its long-term goal is to maintain the confidence of customers and clients. The medium-term goal is the coherence of the information system as much as possible. Network security serves to preserve the network against invaders, whether they are targeted attacks or opportunistic trojans.
Application security aims to preserve software and products against risk. A corrupted application could allow access to the data it is supposed to preserve to other parts of the house. A reliable security system can be recognized at the intent stage, which is before a program or device is deployed.
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