Generally, during fuzz testing (regardless of the tool used to perform it: American Fuzzy Lop, libFuzzer, or any other), we have to remember to keep the number of iterations per second high. This means that a good fuzzer is a fast fuzzer. This is mostly facilitated by minimizing the structures and operations needed to prepare the context. We do not reinitialize the mechanisms of the fuzzed library for every iteration.

Fuzzing is a software testing method that involves passing malformed data as input to the program and monitoring it for misbehavior. Today, fuzzing is one of the most effective ways to find software security problems. In 2014, Michał Zalewski presented American Fuzzy Lop, the first coverage guided fuzzer. This started the modern world of fuzzing solutions and techniques on the market.