Major and Important types of network security are as follows:
1. Access Control
In this case, not every person should have complete allowance for accessibility to the network and its data. Access is granted strictly as per the user’s assigned rights and roles.
2. Antivirus & Antimalware Software
This type of network security ensures that malicious software like viruses, trojans, and worms are handled effectively. It ensures not only that the entry of malware is blocked, but also that the system is well-equipped to fight a threat once it has entered.
3. Cloud Security
A large amount of data is stored in the cloud, which is vulnerable to unauthorized practices. Protection must be absolute, ensuring that access given to employees by SaaS companies does not create gaps in security.
4. Email Security
Most companies utilize inbuilt security processes to filter communication. For example, fraudulent or phishing emails are identified and sent directly to the spam folder to protect the user.
5. Firewall
A network security device that is either hardware-based, software-based, or both. A firewall monitors incoming and outgoing traffic based on a defined set of rules. It can accept, reject, or drop traffic accordingly. Before modern firewalls, Access Control Lists (ACL) were primarily used to filter traffic.
6. Application Security
Application security denotes the precautionary measures utilized at the application level to prevent the stealing or capturing of data and code residing inside the software.
7. Intrusion Prevention System (IPS)
A network security application that monitors network or system activities for malicious behavior. Its main features are identifying malicious activity and taking active steps to protect the network from it.