Hydra is a leading open-source password cracker pre-installed in Kali Linux (version 9.5), tailored for penetration testers and security professionals. This brute-force password-cracking tool for cybersecurity targets over 50 network protocols, making it a premier network login cracker for ethical hacking. With a 956 KB footprint and tools like pw-inspector, Hydra streamlines credential attacks, empowering testers to identify weak passwords and secure systems effectively.