Acunetix is a software tool that is used for web application security testing. It is designed to identify vulnerabilities and weaknesses in web applications and to provide recommendations for how to fix those vulnerabilities.

Acunetix is commonly used by web application penetration testers and cybersecurity professionals to identify and test for a wide range of vulnerabilities, including SQL injection, cross-site scripting (XSS), and insecure file uploads. It can also be used to identify and test for vulnerabilities in web servers and network infrastructure.

Acunetix uses a combination of automated scanning and manual testing to identify vulnerabilities, and it provides detailed reports on the findings. It is often used as part of a comprehensive security testing strategy, along with other tools and techniques.

Acunetix is developed by Acunetix Limited, a software company that specializes in web application security testing tools. It is available in both on-premises and cloud-based versions.