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  • Matt Webster

8 Types of Network Security Every Business Should Have

Updated: Jun 14, 2019


Network security is an important business topic, especially in the healthcare and law firms that deal with a huge amount of sensitive data. With the cost of data breach projected to hit $6 trillion annually by 2021, having a defensive strategy to protect the intellectual data on your network infrastructure against malicious activities should be a top priority.


Network security includes software, hardware, and cloud services that combine several defense layers. Each layer implements certain unique controls and policies that cast up a detection or prevention net. The multiple security layers build up a defensive solution that can easily monitor, identify, block, and alert you of any potential threat or unauthorized access to network resources.



Here are the common types of network security:


1. Firewalls


A firewall is a network security system, which operates on predetermined rules to establish a barrier between a reliable network and unreliable network. This protection mechanism monitors and filters the incoming and outgoing traffic on a network.

The main categories of firewalls are the host-based and network firewalls. With the host-based firewalls, they control traffic in and out of host computers and machines. Network firewalls, on the other hand, are run on network hardware and work by filtering traffic between two or more networks.


2. Email security


Email remains the leading way that cybercriminals take use to carry out sophisticated phishing attacks and spread malware using deceptive means, thanks to the social engineering methodologies.


Having effective email security and protection solution will filter out and block any incoming malicious threat. Additionally, it can help encode the outbound messages or information in a way that only an authorized party can access the intelligible content.


3. Data Loss Prevention (DLP)


Data loss prevention involves the use of a set of security tools and methodologies that monitor and control endpoint activities, as well as data in the cloud when in use, rest, or motion. It filters data streams on your business network and prevents the loss, misuse, or access by cybercriminals.


The protection can also extend to preventing your employees from uploading, forwarding, and sharing business data in a less safe environment or manner.

The purpose of DLP is to identify violations of certain predefined policies that are driven by regulatory compliance like PCI-DSS, HIPAA, and GDPR. Any violation detected will automatically trigger sending alerts, encryption enforcement, or any other defense measures that prevent a risky action.


4. Network Segmentation


Network segmentation is a security approach of classifying a computer network into sub-networks to address the unique demands of an organization. This strategy reduces congestion on a network and helps enforce security policies a lot easier, thus boosting performance.


Segmentation controls the level of access personnel groups have depending on the nature of the information they process and store. Third parties also require a separate segment network.


Network segmentation is often performed based on endpoint identity and IP addresses.


5. Network access control (NAC)


This is an act of enforcing various security policies to control who can access your network. The access rights are assigned to users based on their devices. With the network access control technique, you can block noncompliant endpoint devices or control the activities of a compliant user within your network.


Your IT team can make use of behavioral analytic tools to effectively detect behaviors and activities that appear to deviate from the norm. Being able to receive automatic notifications from a suspicious activity can help promptly remediate any lurking danger.


6. Application security


Apps are prone to a constantly evolving set of security flaws that presents cyber attackers with an opportunity to enter the network. Security for applications encompasses measures and procedures that a company puts in place to secure its app from external threats.


The measures usually include detecting, fixing, and preventing potential vulnerabilities at various phases of an application, such as development, deployment, maintenance, and upgrade.


7. Security Information and Event Management (SIEM)


This approach to security management complements the security information management (SIM) with security event management (SEM). SIEM provides real-time analysis, reports, notifications and console views that are generated by network hardware and applications. This helps your security management team to respond to threats right in time and more effectively.


8. Antivirus and Antimalware Software


Antivirus and antimalware software is another popular way of protecting your network system against malware infection, replication, and spreading. Malware is a term used to refers to malicious code, including spyware, worms, viruses, ransomware, Trojans, nagware, and adware.


Advanced software will extensively scan your system, eliminating the potential viruses and malware on entry. Not only that, but it can also regularly track files to identify and remove any threat or damage.


The Importance of Network Security


A stable network security system is essential to protect yourself from the risk of harmful malware and data sabotage or theft. Multiple layers of security give you peace of mind knowing the transactions and data shared on your network are kept safe.


There’s continuous monitoring of any suspicious activities, and security teams get real-time analysis and alert to execute the best course of actions and prevent data from hacking.


Ever imagined what could happen to your business if you permanently lost critical data due to cyber theft? Perhaps the most obvious consequence is that your company risks incurring a huge revenue loss.


Aside from the possible fines and compensation, you’ll also need to plan and invest in a new network infrastructure. And before that happens, it means you’ll cease making transactions. This can easily put your firm in financial jeopardy.


A security breach can also ruin the reputation of your organization, making you untrustworthy to the public, and potentially losing credibility.


Ultimate solution — working with cybersecurity experts!


While no network is immune to cyber threats, implementing stable network security can go a long way in protecting your company’s valuable data and resources. To be safe from the always evolving attacks, you’ll want to work with trusted and experienced cybersecurity experts.




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