Which of the following is a recommended practice to protect personal information?

Regularly updating passwords and using two-factor authentication is crucial in protecting personal information. This practice helps mitigate the risk of unauthorized access to accounts and sensitive data. By changing passwords frequently, individuals reduce the chances that their accounts can be compromised, as old passwords become less relevant over time.

Two-factor authentication (2FA) adds an additional layer of security beyond just a password. It typically requires a second form of verification, which could be a code sent to a mobile device or an authentication app. This means that even if someone were to obtain a password through phishing or other means, they would still be unable to access the account without the second factor, thus enhancing security significantly.

In contrast, using the same password for multiple accounts creates vulnerabilities, as a breach in one account could potentially compromise others. Sharing accounts can lead to a lack of accountability and control over who has access to sensitive information. Storing passwords in an unprotected document poses the risk of exposing those passwords to anyone who has access to that document, further increasing the likelihood of identity theft. Therefore, regularly updating passwords and employing two-factor authentication is considered a best practice for safeguarding personal information.