The OWASP ZAP tool is developed by OWASP Team. The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications. It is designed to be used by people with a wide range of security experience and as such is ideal for developers and functional testers who are new to penetration testing. ZAP provides automated scanners as well as a set of tools that allow you to find security vulnerabilities manually.
Source : - https://www.owasp.org/index.php/OWASP_Zed_Attack_Proxy_Project
Wiki : - http://code.google.com/p/zaproxy/wiki/Introduction
ZAP : - http://code.google.com/p/zaproxy/
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