WAF protects E-Commerce from cyber attacks

| Along with the development of IT, online shopping is becoming a trend for many consumers. Especially in the context of the current epidemic, the online shopping market has become more exciting than ever. At the same time, there have also been many cyber attacks targeting online business activities, causing serious consequences. The following article shares about WAF | Web application firewall for e-commerce sites. |

What is a Web Application Firewall?

Currently, on the market, there are many different tools to protect office equipment. However, the most widely used and trusted application is the firewall. In a nutshell, a firewall is an intermediary layer that filters the incoming/outgoing connections of a device. Only authorized connections can access the network. Otherwise, the firewall will block unauthorized connections. Thanks to this tool, businesses have avoided many attacks in cyberspace.

Science and technology are increasingly advanced, this traffic filtering function is not only for office devices but also can be used for web applications such as e-commerce sites, through a tool called WAF. The Web Application Firewall acts as an intermediary between the consumer and the store. Therefore, it will enhance the security of e-commerce stores.

How does the WAF firewall work?

Web Application Firewall works on the principle of traffic classification. It will classify which traffic is allowed to access the store. And malicious, dangerous or unauthorized traffic is prevented. Not only that, but the web application firewall also monitors and analyzes store traffic. WAF is a configurable tool based on pre-established rules. As a result, it is possible to limit or even eliminate many threats such as SQLite, XSS, CSRF, DDoS… In addition, users can also create their own set of rules to avoid application errors or vulnerabilities. unpatched until they are updated.

Web Application Firewall Classification

Based on the location where it is installed, WAF firewalls can be divided into three types as follows:

1. Network-based WAF:

Deployed within the company’s own structure, often in the same DMZ or demilitarized zone where the webserver is located. This is the WAF with the best handling. However, the disadvantage is the high cost because it has to invest in hardware and specialized staff to manage.

2. Server-based WAF:

Installed on the same storage server. It is an ideal solution for businesses with private servers or virtual private servers. Compared to network-based WAF, this solution is cheaper because there is no need to invest in hardware. But its main disadvantage is that it depends on server resources to handle requests. Therefore, additional specialized personnel may be required for management and maintenance. In general, server-based or network-based web application firewalls are both quite time-consuming.

3. Cloud-based WAF:

As the name implies, WAF’s infrastructure is all on the Cloud. Therefore, businesses do not need to invest in hardware or resources. This is the right choice for businesses looking for a low-cost WAF solution. Currently, there are many service providers in the market. Solutions are constantly updated. That way, store owners don’t need to worry about the latest threats anymore. The main limitation of this type of WAF firewall is that management is in the hands of service providers and mobile app developers. Therefore, you should be aware of the applicable policy as well as the supplier’s response time in the event of a problem.

The importance of Web Application Firewall

WAF is an essential tool for e-commerce or any important web application. With filtering and blocking of malicious connections, the WAF firewall will prevent outside intruders from wanting to cheat and steal important data, providing a safe and secure working environment for customers.

Cloud WAF VNIS Firewall is trusted by leading enterprises

If you are looking for a secure solution for your e-Commerce, consider the VNIS web application firewall.

Auto-learning mode: automatically analyzes network attacks and updates the system.
Website attack prevention: automatically patching vulnerabilities, helping to keep the Website safe at all times.
Effective management interface: a utility interface, helping administrators control the types of network attacks that are happening on the Website.
Maximum security of network layers, especially layer 3/4/7.
Infrastructure is built in Vietnam, 24/7 technical support.

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