What is a recommended practice when creating passwords?

Creating passwords with a mix of letters and numbers is a recommended practice because it significantly enhances the security of online accounts. This approach increases the complexity of the password, making it much harder for potential attackers to guess or crack it. A mixed password that incorporates both uppercase and lowercase letters, numbers, and special characters creates a larger number of possible combinations, thereby improving resistance against brute-force attacks, where attackers use automated tools to guess passwords.

Using the same password across multiple accounts can compromise security since if one account is breached, all other accounts using that same password are at risk. Choosing simple passwords for convenience may lead to easy guessing or utilizing common passwords, which many attackers already exploit. Moreover, neglecting to change passwords regularly can leave accounts vulnerable over time, especially if a password has been exposed or leaked. Therefore, mixing letters and numbers remains an essential guideline for password creation to protect personal and sensitive information.