Hydra 1. Hydra is a popular password-cracking tool designed to perform rapid dictionary and brute-force attacks against various protocols and services. 2. It supports a wide range of protocols, including HTTP, FTP, SSH, and more, making it versatile for testing the strength of passwords in different applications. **Example**
1. Perform a dictionary attack on an FTP server: `hydra -l username -P passwordlist.txt ftp://example.com` 2. Conduct a brute-force attack on an SSH service: `hydra -l admin -P passwordlist.txt ssh://example.com`