A technician is configuring a newly imaged Windows workstation for a small office. The built-in "Administrator" account is still enabled with a vendor-supplied default password. Which of the following actions will BEST reduce the risk of unauthorized administrative access to this system?
Share the default Administrator password with authorized power users for convenience.
Create a guest account with no password and give it administrator privileges.
Enable Remote Desktop for the default Administrator account so it can be managed remotely.
Rename or disable the default Administrator account and assign a unique, complex password.
Default administrator usernames and passwords are widely known and frequently included in automated attack scripts. Renaming (or disabling) the default Administrator account and assigning it a strong, unique password removes that common attack vector. Enabling Remote Desktop, sharing the default password, or creating a password-free guest account with elevated privileges all increase-rather than decrease-the system's exposure.
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Why is it important to change default credentials?
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What does unauthorized access mean?
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What security measures can be taken beyond changing default credentials?