The following error message appears when trying to update the service account password in the Defender Management portal configuration screen:
"User credentials are not correct"This type of message is also shown in the Defender Management portal trace:
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ERROR 2022-07-01 10:47:28,168 4706715ms [69] HomeController LoginInternal - Failed to log in service account, user account will be used for impersonation
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And the Windows event security log will show a 4625 Event ID.
Failure Reason: Unknown user name or bad password