Final answer:
To prevent multiple password guesses, several security methods are used, including a lockout policy, two-factor authentication, the use of stronger passwords, and user education to avoid scams.
Step-by-step explanation:
To prevent someone from guessing a password multiple times, several security measures can be implemented. One common method is a lockout policy, where an account becomes temporarily inaccessible after a certain number of failed login attempts. This helps to stop automated password-guessing attacks, such as brute-force attacks. Furthermore, the use of two-factor authentication adds an extra layer of security by requiring a second form of identification, often a code sent to the user's mobile device or email, beyond just the password itself. In addition, creating stronger passwords that use a mix of characters, such as uppercase and lowercase letters, numbers, and symbols, can make passwords harder to guess. Lastly, user education on how to avoid being scammed and identifying phishing attempts is crucial for increased security.