In this digital age, where there is a massive increase in cyberattacks and a great reliance on technology, protecting data and information has become a difficult challenge. The pace of cyber threats is far faster than the advancements that organizations are achieving. Globalization has caused computer networks to grow larger and more globally interconnected through the use of a Wide Area Network (WAN). Cyberattacks are difficult for the IT security systems in place today to avoid. Almost every month, 4800+ websites were penetrated by formjacking attacks, according to Symantec’s 2019 Internet Security Threat Report (Volume 24). In 2018, supply chain attacks also rose by 78%. Moreover, improper S3 bucket configuration resulted in the leakage or theft of over 70 million records.
Network security: what is it?
Network security, according to the SANS organization, is the proactive approach used to protect network infrastructure from misuse, incorrect disclosure, illegal access, alteration, and loss of data.
Why is network security necessary?
In a computing context, network security is crucial for safeguarding data and information from unauthorized users. Any network security system has to have these three essential elements in place. These are the CIA trinity, or confidentiality, integrity, and availability. When data is transmitted via a network, confidentiality makes sure that hackers cannot intercept it. Integrity ensures that information is not altered, tampered with, or lost while being transmitted across a network. Another security feature that guarantees that only authorized users can access the systems and devices is availability.
Which Important Network Security Features Are There?
Organizations must implement numerous procedures in order to guard against network assaults. These techniques are covered in more detail in the sections that follow.
Network Security Policy: A written document that outlines the permissions for access and the restrictions placed on authorized users is known as a network security policy. The network security precautions that are to be performed on a regular basis are also included in this important publication. For instance, sporadically implementing disaster recovery plans and risk assessment testing.
Password Policy: The policy highlights that a user’s name and birthdate should be linked to their password, which shouldn’t be overly simple. Rather, it ought to be robust enough to repel password assaults like Brute-force, Rainbow Tables, and Dictionary attacks. At least eight characters, including capital and lowercase letters, digits, and special characters, make up a strong password. Employees should also be required to change their passwords at least once every 90 days or three months.
How to Apply a Multilayer Security The process of protecting a network by utilizing a number of security measures at once, such as installing firewalls, intrusion detection systems, and antivirus software, is known as multilayer security.
Deploying SIEM: Security Information and Event Management, or SIEM, is a security technology that facilitates incident response and threat detection by gathering events in real-time and analyzing them historically from a variety of events and data sources (Gartner). By alerting analysts through security alerts, SIEM assists enterprises in safeguarding their networks and preventing threat actors from breaching the system. As a result, a business network security solution ought to include SIEM.
Maintaining Network Current: Threat actors frequently exploit outdated operating systems, software, device drivers, and network devices to gain access to corporate networks through security gaps. Organizations must update their operating systems, device drivers, software, and other essential tools on a regular basis to avoid this kind of scenario.
Providing Instruction to Workers: The weakest link in any network is a human. For this reason, malicious actors target people using phishing and social engineering schemes. That being said, companies ought to provide their staff with proactive training to warn them about potential hazards and how to avoid them. For instance, users should not be allowed to utilize social media sites, torrents, or unwelcome downloads while at work.
Physical Precautions: It’s also crucial to guarantee the network infrastructure’s physical security. For instance, a secure location with physical controls like mantrap and biometric locks must be used for DNS servers, data servers, and other crucial network devices.
The security of Wi-Fi and cryptography: Prior to being sent across a network to other locations, the data needs to be encrypted. Digital certificates should be used to safeguard Wi-Fi networks as well.
Keeping a computer environment’s network secure is the foundation of this research piece. The study identified a number of characteristics that are crucial for safeguarding data and information from unwanted access. Because of this, it is clear that cyber threats are more frequent and sophisticated, making networks more susceptible to these well-known assaults. On the other hand, proactive steps taken by enterprises can guarantee network security.