A specialised domain in computer networking that involves securing a computer network infrastructure. Network security is usually handled by a network administrator or system administrator who implements the security policy, network software & hardware needed to protect a network and the resources accessed through the network from unauthorized access and also assure that employees have enough access to the network and reserves to work.
A network security system typically depends on the layers of protection and consists of multiple components including networking monitoring and security software in addition to hardware and appliances. All elements work together to increase the overall security of the computer network.
As the reliability of online technologies is increasing, it is becoming more and more necessary to keep every aspect of online data and information safe and sound. One of the most appropriate ways to make sure that your IT solutions are protected is network security which is provided by various cybersecurity agencies.
WHAT IS NETWORK SECURITY?
It can be explained as any protection of access, misuse, and hacking of files & directories in a network system. The various numbers of most common threats to a network system can be viruses, worms, and spyware, adware and identity thefts as well. Network Security offers multiple layers of security.
Most common network security threats spread over the internet are -
- Viruses, worms and Trojan horses
- Spyware and adware
- Zero-day attacks also called zero-hour attacks
- Hacker attacks
- Denial of service attacks
- Data interception and theft
- Identity theft
These different types of threats can be categorised as structured and unstructured. Four steps to protect your network system against attacks are -
1. IMPLEMENTATION - First of all you are supposed to make and implement a network security system which would offer protection along with having enough authorising policies.
2. TEST - Once an appropriate network security system is installed, you need to conduct tests to ensure that all of the securities are in the proper place and will surely protect your network system from any threats.
3. ANALYSE - When a network security system is created and implemented, the system requires to be checked upon to find out if the present security system is okay for the network it is protecting.
4. MODIFY - After conducting the tests, gather the data to increase protection. The results will tell you if your security system is efficient and effective or not.
Network security is essential for an efficient system administration. With the kind of cyber threats faced by business networks in the present time, network security is the vital aspect of any security strategy. No matter how big or small your business is, they need to ensure sound network security to prevent information theft and privacy spoofing. There are many incidences of breach into a business network, and the latest one is the "Winery Ransomware" that locked data on thousands of systems across the world. Hackers have developed many sophisticated skills for network breach, requiring better network security.
To err is human. Sometimes a piece of equipment is misconfigured, or a piracy software is installed by employees, inviting security breaches inadvertently. Some default security holes of TCP/IP protocols and operating systems can also lead to a network security breach. And then, you have the advanced evasion techniques (AET), which combines different evasion methods to devise a new technology to bypass an information security system.
From structured cyber-attacks by skilled hackers to password attacks, IP address spoofing, Denial of Service attacks, and social engineering, there are many ways hackers can infringe on your business security. But, by ensuring network security, businesses of all sizes can:
PROTECT COMPUTERS FROM MALWARE/SPYWARE: Network security safeguards your computers against malware or spyware attacks. Malware attacks can cause harm to your devices by often being attached as macros to files. A hole in an operating system, software or browser can also lead to malware attacks.
ENSURE SECURE DATA SHARING: If the computers in your office are on a shared network, then it is even more critical to ensure network security. For the safety of shared data and information, it is advised to have a sound network security infrastructure in place.
MANAGE TRAFFIC EFFICIENTLY: Systems exposed to a high level of traffic are more prone to network security attacks. So, for an improved user experiencing without putting a website or system on risk, reliable network security is essential.
ENHANCE NETWORK PERFORMANCE: With fewer downtimes and lesser lagging, businesses can enjoy higher network performance and boost their profits.
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