Fuzz testing, also known as fuzzing, is a dynamic software testing technique that involves sending invalid or unexpected inputs to a program or system to search for bugs and security vulnerabilities. This method can help teams discover implementation bugs and improve the security and stability of software. Fuzz testing is automated and utilizes tools called fuzzers to submit various combinations of inputs, making it more efficient than manual testing methods. Some advantages of fuzz testing include its ability to find unknown bugs, its potential to improve code quality, and its use in detecting security vulnerabilities. However, there are also some potential disadvantages such as false positives and the need for constant maintenance of test cases. Overall, fuzz testing is a useful method for identifying bugs, vulnerabilities, and reliability issues in software development and programming.