This kind of password cracking method uses word lists in combination with numbers and special characters:

A hybrid attack specifically combines dictionary-based word lists with rule-based mutations such as appending numbers (e.g., 'password1') or adding special characters (e.g., 'password!'). This method is more targeted than brute force because it exploits the common human tendency to base passwords on real words with minor modifications. It sits between a pure dictionary attack and a full brute-force attack in terms of scope and efficiency.

Linear is not a recognized password cracking methodology - no standard attack technique uses this term.

Symmetric refers to a type of encryption algorithm (such as AES) that uses the same key for encryption and decryption, and is unrelated to password cracking methods.

Brute force exhaustively tries every possible character combination without using word lists, making it slower and less targeted than a hybrid attack.