Windows 10: MDCA - Account enumeration reconnaissance alert

HiWe are seeing a constant alert in MDCA for Account enumeration reconnaissance. This alert is against our on prem exchange server. We do not have any mailboxes on the exchange server all of our user mailboxes are held in the cloud. The exchange server seems to be querying the DC's for these users. Continually.This alert is telling us the following Enumeration included a total of 48 guess attempts for account names.2. The most recent enumeration attempts included a total of 26 non-existing account names.We thought this was suspicious at first however when we look into this details of the alert

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Remove account

I suggest you backup your personalized files first before removing the account.
To delete an account, follow these steps:

1. Press WIN + X keys and click Command Prompt (Admin) from the menu.
2. Type the following command and press Enter. Replace test with the name of your sister's account. Code:

 

Emergency Alerts

Hi Stephanie,

Just to confirm, is this the same thing that you tried on your phone, in order to turn off Amber Alerts?

• Open Settings.
• Tap on System.
• Tap on Messaging.
• Tap on the Change emergency alert settings link.
• Turn on or off the emergency alerts you want.

Let us know if this was the same thing that you tried.

We would also suggest to reset your phone after doing these steps to ensure that the changes on your phone's settings will be refreshed.

Simply press and hold the Power and Volume down button for 15 seconds and then release your hold afterwards.

 

e mail alerts

Hello,

Try these steps:

To turn on and turn off email notifications, follow these steps:

• From the Start screen, touch the screen and slide left.
• Scroll to and tap Settings.
• Tap ringtones+sounds.
• Tap manage app sounds.
• Tap the email account.
• Tap the Notification sound field.
• Select the desired alert option.