Which of the following practices can help prevent unauthorized access to sensitive data?

Regularly changing passwords is an effective practice for safeguarding sensitive data and preventing unauthorized access. This approach helps mitigate the risks associated with password compromise. Over time, passwords can become exposed through various means, such as data breaches or social engineering attacks. By routinely updating passwords, individuals reduce the likelihood that an outdated password, which may have been leaked or guessed, will allow an unauthorized user to gain access to systems protected by that password.

Additionally, changing passwords frequently encourages the use of complex and unique passwords for each account, which bolsters overall security. This practice aligns with the fundamental principles of good cybersecurity hygiene — not only limiting access but also enhancing the overall integrity of sensitive data.