Password attacks are unauthorized attempts to gain access to a system or account by guessing or cracking the password. There are several types of password attacks, including:
1. Brute force attack: In this type of attack, the attacker tries every possible combination of characters until the correct password is found.
2. Dictionary attack: In a dictionary attack, the attacker uses a list of commonly used passwords or words from a dictionary to try to guess the password.
3. Rainbow table attack: A rainbow table is a precomputed table of password hashes that can be used to quickly crack passwords.
4. Phishing: Phishing attacks involve tricking users into revealing their passwords by posing as a legitimate entity, such as a bank or email provider.
To protect against password attacks, it is important to use strong, unique passwords for each account, enable two-factor authentication when possible, and regularly update passwords. Additionally, organizations should implement security measures such as account lockouts and password complexity requirements to prevent unauthorized access.