Fuzzing, also known as fuzz testing, is a software testing technique that involves feeding random or semi-random data to a program or system in order to find security vulnerabilities or other bugs. The idea behind fuzzing is to find inputs that cause unexpected or undesirable behavior in the program or system being tested.
Fuzzing is often used to test the security of software and systems, as it can reveal vulnerabilities that would be difficult to find through other testing methods. For example, fuzzing can be used to find buffer overflow vulnerabilities, which occur when a program tries to store more data in a buffer than it can hold, leading to a crash or other unexpected behavior.
Fuzzing can be done manually, where a tester generates test inputs and feeds them to the program, or it can be automated, using specialized tools that automatically generate and run test inputs.
Fuzzing is an important aspect of software security, as it can help identify vulnerabilities and bugs before they are exploited by attackers. By using fuzzing, organizations can improve the security of their software and systems and prevent security incidents from occurring.