Paros Proxy includes a number of useful tools for running security tests. These include a web spider, traffic recorder and vulnerability scanner.
Paros is excellent for detecting network intrusion openings to some of the most common threats. These include detecting SQL injection attacks and cross-site scripting. Very easy to edit with even rudimentary Java or HTTP/HTTPS knowledge.
Anyone who can write a web application can edit Paros Proxy. An excellent network protection software testing tool for identifying a security risk before it becomes a security breach. Paros is also well know because it supports editing/viewing HTTP messages on-the-fly.