link fix

replacing https://securitycenter.windows.com with https://aka.ms/mdatpportal

windows/security/threat-protection/microsoft-defender-atp/symantec-to-microsoft-defender-atp-onboard.md

@@ -29,7 +29,7 @@ ms.topic: article
 
 ## Onboard devices to Microsoft Defender ATP
 
-1. Go to the Microsoft Defender Security Center ([https://securitycenter.windows.com](https://securitycenter.windows.com)) and sign in.
+1. Go to the Microsoft Defender Security Center ([https://aka.ms/MDATPportal](https://aka.ms/MDATPportal)) and sign in.
 
 2. Choose **Settings** > **Device management** > **Onboarding**. 
 
@@ -85,4 +85,4 @@ Now that you have onboarded your organization's devices to Microsoft Defender AT
 
 **Congratulations**! You have completed your [migration from Symantec to Microsoft Defender ATP](symantec-to-microsoft-defender-atp-migration.md#the-migration-process)! 
 
-- [Visit your security operations dashboard](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/security-operations-dashboard) in the Microsoft Defender Security Center ([https://securitycenter.windows.com](https://securitycenter.windows.com)). 
+- [Visit your security operations dashboard](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/security-operations-dashboard) in the Microsoft Defender Security Center ([https://aka.ms/MDATPportal](https://aka.ms/MDATPportal)). 

windows/security/threat-protection/microsoft-defender-atp/symantec-to-microsoft-defender-atp-prepare.md

@@ -40,14 +40,14 @@ To get started, you must have Microsoft Defender ATP, with licenses assigned and
 
 4. If endpoints (such as devices) in your organization use a proxy to access the internet, see [Microsoft Defender ATP setup: Network configuration](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/production-deployment#network-configuration).
  
-At this point, you are ready to grant access to your security administrators and security operators who will use the Microsoft Defender Security Center ([https://securitycenter.windows.com](https://securitycenter.windows.com)). 
+At this point, you are ready to grant access to your security administrators and security operators who will use the Microsoft Defender Security Center ([https://aka.ms/MDATPportal](https://aka.ms/MDATPportal)). 
 
 > [!NOTE]
 > The Microsoft Defender Security Center is sometimes referred to as the Microsoft Defender ATP portal. 
 
 ## Grant access to the Microsoft Defender Security Center
 
-The Microsoft Defender Security Center ([https://securitycenter.windows.com](https://securitycenter.windows.com)) is where you access and configure features and capabilities of Microsoft Defender ATP. To learn more, see [Overview of the Microsoft Defender Security Center](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/use).
+The Microsoft Defender Security Center ([https://aka.ms/MDATPportal](https://aka.ms/MDATPportal)) is where you access and configure features and capabilities of Microsoft Defender ATP. To learn more, see [Overview of the Microsoft Defender Security Center](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/use).
 
 Permissions to the Microsoft Defender Security Center can be granted by using either basic permissions or role-based access control (RBAC). We recommend using RBAC so that you have more granular control over permissions.
 

windows/security/threat-protection/microsoft-defender-atp/symantec-to-microsoft-defender-atp-setup.md

@@ -131,7 +131,7 @@ You can choose from several methods to add your exclusions to Microsoft Defender
 
 To add exclusions to Microsoft Defender ATP, you create [indicators](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/manage-indicators#create-indicators-for-files).
 
-1. Go to the Microsoft Defender Security Center ([https://securitycenter.windows.com](https://securitycenter.windows.com)) and sign in.
+1. Go to the Microsoft Defender Security Center ([https://aka.ms/MDATPportal](https://aka.ms/MDATPportal)) and sign in.
 
 2. In the navigation pane, choose **Settings** > **Rules** > **Indicators**.
 
@@ -178,7 +178,7 @@ File(c:\\windows\\notepad.exe)
 
 | Collection type | What to do |
 |--|--|
-|[Device groups](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/machine-groups) (formerly called machine groups) enable your security operations team to configure security capabilities, such as automated investigation and remediation.<br/><br/> Device groups are also useful for assigning access to those devices so that your security operations team can take remediation actions if needed. <br/><br/>Device groups are created in the Microsoft Defender Security Center. |1. Go to the Microsoft Defender Security Center ([https://securitycenter.windows.com](https://securitycenter.windows.com)).<br/><br/>2. In the navigation pane on the left, choose **Settings** > **Permissions** > **Device groups**.  <br/><br/>3. Choose **+ Add device group**.<br/><br/>4. Specify a name and description for the device group.<br/><br/>5. In the **Automation level** list, select an option. (We recommend **Full - remediate threats automatically**.) To learn more about the various automation levels, see [How threats are remediated](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/automated-investigations#how-threats-are-remediated).<br/><br/>6. Specify conditions for a matching rule to determine which devices belong to the device group. For example, you can choose a domain, OS versions, or even use [device tags](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/machine-tags). <br/><br/>7. On the **User access** tab, specify roles that should have access to the devices that are included in the device group. <br/><br/>8. Choose **Done**. |
+|[Device groups](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/machine-groups) (formerly called machine groups) enable your security operations team to configure security capabilities, such as automated investigation and remediation.<br/><br/> Device groups are also useful for assigning access to those devices so that your security operations team can take remediation actions if needed. <br/><br/>Device groups are created in the Microsoft Defender Security Center. |1. Go to the Microsoft Defender Security Center ([https://aka.ms/MDATPportal](https://aka.ms/MDATPportal)).<br/><br/>2. In the navigation pane on the left, choose **Settings** > **Permissions** > **Device groups**.  <br/><br/>3. Choose **+ Add device group**.<br/><br/>4. Specify a name and description for the device group.<br/><br/>5. In the **Automation level** list, select an option. (We recommend **Full - remediate threats automatically**.) To learn more about the various automation levels, see [How threats are remediated](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/automated-investigations#how-threats-are-remediated).<br/><br/>6. Specify conditions for a matching rule to determine which devices belong to the device group. For example, you can choose a domain, OS versions, or even use [device tags](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-atp/machine-tags). <br/><br/>7. On the **User access** tab, specify roles that should have access to the devices that are included in the device group. <br/><br/>8. Choose **Done**. |
 |[Device collections](https://docs.microsoft.com/mem/configmgr/core/clients/manage/collections/introduction-to-collections) enable your security operations team to manage applications, deploy compliance settings, or install software updates on the devices in your organization. <br/><br/>Device collections are created by using [Configuration Manager](https://docs.microsoft.com/mem/configmgr/). |Follow the steps in [Create a collection](https://docs.microsoft.com/mem/configmgr/core/clients/manage/collections/create-collections#bkmk_create). |
 |[Organizational units](https://docs.microsoft.com/azure/active-directory-domain-services/create-ou) enable you to logically group objects such as user accounts, service accounts, or computer accounts. You can then assign administrators to specific organizational units, and apply group policy to enforce targeted configuration settings.<br/><br/> Organizational units are defined in [Azure Active Directory Domain Services](https://docs.microsoft.com/azure/active-directory-domain-services). | Follow the steps in [Create an Organizational Unit in an Azure Active Directory Domain Services managed domain](https://docs.microsoft.com/azure/active-directory-domain-services/create-ou). |