Network Security

 Network security

·       Network security is a set of technologies that protects the usability and integrity of a company’s infrastructure by preventing the entry or proliferation within a network of a wide variety of potential threats.

·       Network security consists of the policies, processes and practices adopted to prevent, detect and monitor unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources.

Types of network security

1.      Network access control (NAC)

2.     Application security

3.     Antivirus and anti-malware software

4.     E-mail security

5.     Wireless security

Why do we need it?

Network security is important because it keeps sensitive data safe from cyber attacks and ensures the network is usable and trustworthy.

Example

Many companies don’t allow employees to use their personal devices to connect to their corporate networks. This is a form of endpoint security because it prevents malicious software from being transmitted from a personal device.

Network security tool

These tools and strategies are:

·       Firewall – block all known attacks at the boundary of the network.

·       Reverse firewall – for data loss protection.

·       Intrusion prevention systems/SIEMs – catch anomalous behavior on the network that the firewall missed.

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