Discuss about the Safeguard The System From The Security.
Network security is a set of procedures and policies that are used prevent unauthorised access, modification of data or denial of service. Network security assures that data is accessed only by valid users it is important as many type of institutions and organisations are involved with it. The main concept of network security arises from authentication that is designed to allow the access rights [1]. Thus report covers the main concern about network security the major methods that are used to secure the network. The threat that exists in the network of a system is addressed. The count measures are also discussed to safeguard the system from the security.
There are various methods used to secure the network and stop the threats to enter or spread in the network. This is done by managing the threat by keep the software’s updated to protect the network from all the existing threats [2]. There are following ways used to network access security.
Network security is breached due to various threats that exist due to malicious activities. The threats or attacks can be either active or passive [7]. Active attack is actually caused when intruder intentionally perform certain activities to destroy the normal operations. The hackers try to modify the data and make changes in normal operation. The passive attack is where the hackers just monitor the path over the network without making any changes.
The threat that exists in a system is due to viruses that spoils the normal operation of network. Data modification is one of the threats that are performed by third part user to violet the confidentiality of data. Denial of service is another threat that says that valid users are not able to access the information or make the resources unavailable [8]. The DNS spoofing is the other threat in which the domain name system is introduced in the cache server that returns incorrect result. The man in the middle attack is a threat that is caused by a third party where they silently read the data or alter the communication between certain parties. Phishing is another threat on the network in which the hacker tries to access the password as well as sensitive data. These threats spoil the trust as well as confidentiality of data [9]. These threats spoil the goodwill of an organisation as they leak the sensitive information by spoiling the confidentiality and integrity of data.
The motive of these threats is to keep the network busy by increasing the traffic of the network. The major threats that exist are due to old security measures that allow hackers to steal, utilize the information without any permission. The other such threats are weak access control that is due to poor authentication and authorization. The rights to access the resources need to be checked so that credentials or privileges are not affected [10]. The external threats that exist on the network include viruses, worm, spywares and Trojans. They enter the system from side doors and damage and steal the data by performing various activities on the network. One of the main threats that spoils the confidentiality of data is eavesdropping that allow unauthorised monitoring to people unknowingly. These threats focus on accessing the confidentiality data of an organisation so that it can be misused or steeled.
Preventive Controls are designed so that flaws do not occur at the first place only. These steps are taken before any loss or problem occurs to prevent security violations and stop the incident from occurring at all. Examples are blocking certain codes, firewalls, Security guards, using locks, using encryption and so on.
Detective Control is used to discover the unwanted activities and report them. It happens after the bug has already taken place as prevention control failed, it is important to detect so that it does not future effect the performance [10]. But it is difficult as one can’t identify when an incident will occur.
There are various threats that spoil the confidentiality, integrity and security of network. Thus there are series of count measures that are undertaken to maintain the security level. Some of the countermeasures like access control, authentication, integrity of data, availability and nonrepudiation of data. Access control makes sure that admin ensures the access to functions by giving permission to only authenticated user. The purpose of authentication is to make sure that only user with valid identity can send and receive data over the network [11]. Other than that confidentiality of data is maintained by providing the encryption, access control as well cryptography.
Security Policy- A security related policy has been designed to deal with all the attacks. These policies are designed to take proper steps by making user that all the security incidents are handled properly [12]. Apart from various countermeasures are designed to protect the network against all security risks.
Thus all the vulnerabilities are eliminated by removing the entire security hole in the network. The patches need to be removed from the network by applying proper security updates. Thus the count measures are used to make sure that all the sensitive information is protected [13]. The authentication mechanism should be done in such a way that it allows only authenticated data to be transmitted and blocking all the users. To avoid the chances of loss of confidentiality and integrity of the network a proper access control should be delivered to the end user. A proper control regarding who can read, write and modify the information need to be accessed [14]. If the rights are provide in a proper manner than misuse of information will not occur. The defining the rights of information only valid users could read the relevant portion of the database.
Conclusion
It can be concluded that network security is an important to protect the files and directories by providing proper access control it also make sure that network is safe from all the hackers and unauthorised users. This report covers the all the major threats that exist in the system to spoil the integrity and confidentiality of information. The threats and its count measures have been discussed in this report.
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