Grey Box Testing
Grey box testing is a software testing technique that involves a combination of both black box testing (which tests the functionality of an application without knowledge of its internal code) and white box testing (which tests the internal code structure of an application). In grey box testing, testers have limited knowledge of the internal workings of the application, allowing them to design tests based on both user perspectives and code structures. This type of testing can help to uncover defects that may not be identified through black box testing alone.