The article discusses the importance of web application firewalls (WAFs) in securing web applications. The author explains what a WAF is and how it works, highlighting its benefits and limitations. The article also provides tips for selecting the right WAF and configuring it properly. The author emphasizes the need for a layered approach to web security and notes that a WAF should not be the only line of defense. Finally, the article concludes by stating that while WAFs can provide significant protection, they should be used in conjunction with other security measures such as regular updates, strong access controls, and secure coding practices.