Fuzzing in Bitcoin development is an automated testing technique that bombards Bitcoin Core (and related code) with millions of random, mutated, or malformed inputs—like weird transactions, blocks, or P2P messages—to crash the program, reveal bugs, memory errors, or security holes before real attackers can exploit them. It's a key defense that runs continuously (via tools like libFuzzer and OSS-Fuzz) to harden consensus-critical code against malicious network data. Fuzzing simulates an endless stream of evil inputs to find and fix vulnerabilities proactively.
Fuzzing in Bitcoin development is an automated testing technique that bombards Bitcoin Core (and related code) with millions of random, mutated, or malformed inputs—like weird transactions, blocks, or P2P messages—to crash the program, reveal bugs, memory errors, or security holes before real attackers can exploit them. It's a key defense that runs continuously (via tools like libFuzzer and OSS-Fuzz) to harden consensus-critical code against malicious network data.
Fuzzing simulates an endless stream of evil inputs to find and fix vulnerabilities proactively.