What is the difference between a firewall and a WAF?

What is the difference between a firewall and a WAF?

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A WAF, or Web Application Firewall, specifically protects web applications by filtering and monitoring HTTP traffic between a web application and the Internet.

Can you give me examples of when to use each?

Sure! Use a firewall to protect your entire network from unauthorized access. Use a WAF when you want to protect specific web applications from attacks like SQL injection or cross-site scripting.

Are there any overlaps in their functionalities?

Yes, there are overlaps. Both can help prevent attacks, but a firewall focuses on network traffic, while a WAF focuses on application-level security.

Which one is more important for a business?

Both are important, but the choice depends on your specific needs. A firewall is essential for overall network security, while a WAF is crucial for protecting web applications.