Correct Answer. C. Including sequential letters or numbers Sequential letters or numbers (like
"abcd" or "1234") are predictable and often used in weak passwords, making them easier for attackers to guess.
Option A is incorrect as it is recommended to update passwords regularly to mitigate the risk of long-term exposure Option B is incorrect because using different passwords for each account prevents a single breach from compromising multiple accounts Option D is incorrect as long, complex passwords are recommended to enhance security