diff --git a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/assessmentMetadata.json b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/assessmentMetadata.json
index cd2adb339f49..124becdd58ab 100644
--- a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/assessmentMetadata.json
+++ b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/assessmentMetadata.json
@@ -314,11 +314,11 @@
           "type": "string",
           "description": "Human readable description of what you should do to mitigate this security issue"
         },
-        "category": {
+        "categories": {
           "type": "array",
           "items": {
             "type": "string",
-            "description": "The category of resource that is at risk when the assessment is unhealthy",
+            "description": "The categories of resource that is at risk when the assessment is unhealthy",
             "enum": [
               "Compute",
               "Networking",
@@ -327,7 +327,7 @@
               "IoT"
             ],
             "x-ms-enum": {
-              "name": "category",
+              "name": "categories",
               "modelAsString": true,
               "values": [
                 {
diff --git a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/CreateAssessmentsMetadata_subscription_example.json b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/CreateAssessmentsMetadata_subscription_example.json
index a4f0a54edd29..1300f9639098 100644
--- a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/CreateAssessmentsMetadata_subscription_example.json
+++ b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/CreateAssessmentsMetadata_subscription_example.json
@@ -6,10 +6,9 @@
     "assessmentMetadata": {
       "properties": {
         "displayName": "Install endpoint protection solution on virtual machine scale sets",
-        "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/26a828e1-e88f-464e-bbb3-c134a282b9de",
         "description": "Install an endpoint protection solution on your virtual machines scale sets, to protect them from threats and vulnerabilities.",
         "remediationDescription": "To install an endpoint protection solution: 1.  <a href=\"https://docs.microsoft.com/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-faq#how-do-i-turn-on-antimalware-in-my-virtual-machine-scale-set\">Follow the instructions in How do I turn on antimalware in my virtual machine scale set</a>",
-        "category": [
+        "categories": [
           "Compute"
         ],
         "severity": "Medium",
@@ -34,7 +33,7 @@
           "displayName": "My organization security assessment",
           "description": "Assessment that my organization created to view our security assessment in Azure Security Center",
           "remediationDescription": "Fix it with these remediation instructions",
-          "category": [
+          "categories": [
             "Compute"
           ],
           "severity": "Medium",
diff --git a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/GetAssessmentsMetadata_example.json b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/GetAssessmentsMetadata_example.json
index d97f85567e01..57cbbe3e62a6 100644
--- a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/GetAssessmentsMetadata_example.json
+++ b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/GetAssessmentsMetadata_example.json
@@ -14,7 +14,7 @@
           "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/26a828e1-e88f-464e-bbb3-c134a282b9de",
           "description": "Install an endpoint protection solution on your virtual machines scale sets, to protect them from threats and vulnerabilities.",
           "remediationDescription": "To install an endpoint protection solution: 1.  <a href=\"https://docs.microsoft.com/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-faq#how-do-i-turn-on-antimalware-in-my-virtual-machine-scale-set\">Follow the instructions in How do I turn on antimalware in my virtual machine scale set</a>",
-          "category": [
+          "categories": [
             "Compute"
           ],
           "severity": "Medium",
diff --git a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/GetAssessmentsMetadata_subscription_example.json b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/GetAssessmentsMetadata_subscription_example.json
index fdd8f69fe296..1a486275f87a 100644
--- a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/GetAssessmentsMetadata_subscription_example.json
+++ b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/GetAssessmentsMetadata_subscription_example.json
@@ -15,7 +15,7 @@
           "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/26a828e1-e88f-464e-bbb3-c134a282b9de",
           "description": "Install an endpoint protection solution on your virtual machines scale sets, to protect them from threats and vulnerabilities.",
           "remediationDescription": "To install an endpoint protection solution: 1.  <a href=\"https://docs.microsoft.com/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-faq#how-do-i-turn-on-antimalware-in-my-virtual-machine-scale-set\">Follow the instructions in How do I turn on antimalware in my virtual machine scale set</a>",
-          "category": [
+          "categories": [
             "Compute"
           ],
           "severity": "Medium",
diff --git a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/ListAssessmentsMetadata_example.json b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/ListAssessmentsMetadata_example.json
index 3e0ab9018412..3160007d050f 100644
--- a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/ListAssessmentsMetadata_example.json
+++ b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/ListAssessmentsMetadata_example.json
@@ -15,7 +15,7 @@
               "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/26a828e1-e88f-464e-bbb3-c134a282b9de",
               "description": "Install an endpoint protection solution on your virtual machines scale sets, to protect them from threats and vulnerabilities.",
               "remediationDescription": "To install an endpoint protection solution: 1.  <a href=\"https://docs.microsoft.com/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-faq#how-do-i-turn-on-antimalware-in-my-virtual-machine-scale-set\">Follow the instructions in How do I turn on antimalware in my virtual machine scale set</a>",
-              "category": [
+              "categories": [
                 "Compute"
               ],
               "severity": "Medium",
@@ -38,7 +38,7 @@
               "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/22730e10-96f6-4aac-ad84-9383d35b5917",
               "description": "Open remote management ports expose your VM to a high level of risk from internet-based attacks that attempt to brute force credentials to gain admin access to the machine.",
               "remediationDescription": "We recommend that you edit the inbound rules of the below virtual machines to restrict access to specific source ranges.<br>To restrict the access to your virtual machines: 1. Click on a VM from the list below 2. At the 'Networking' blade, click on each of the rules that allow management ports (e.g. RDP-3389, WINRM-5985, SSH-22) 3. Change the 'Action' property to 'Deny' 4. Click 'Save'",
-              "category": [
+              "categories": [
                 "Networking"
               ],
               "severity": "Medium",
@@ -61,7 +61,7 @@
               "displayName": "My organization security assessment",
               "description": "Assessment that my organization created to view our security assessment in Azure Security Center",
               "remediationDescription": "Fix it with these remediation instructions",
-              "category": [
+              "categories": [
                 "Compute"
               ],
               "severity": "Medium",
diff --git a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/ListAssessmentsMetadata_subscription_example.json b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/ListAssessmentsMetadata_subscription_example.json
index 9fb42c0ddeec..5fdd7cc9dd89 100644
--- a/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/ListAssessmentsMetadata_subscription_example.json
+++ b/specification/security/resource-manager/Microsoft.Security/preview/2019-01-01-preview/examples/AssessmentsMetadata/ListAssessmentsMetadata_subscription_example.json
@@ -16,7 +16,7 @@
               "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/26a828e1-e88f-464e-bbb3-c134a282b9de",
               "description": "Install an endpoint protection solution on your virtual machines scale sets, to protect them from threats and vulnerabilities.",
               "remediationDescription": "To install an endpoint protection solution: 1.  <a href=\"https://docs.microsoft.com/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-faq#how-do-i-turn-on-antimalware-in-my-virtual-machine-scale-set\">Follow the instructions in How do I turn on antimalware in my virtual machine scale set</a>",
-              "category": [
+              "categories": [
                 "Compute"
               ],
               "severity": "Medium",
@@ -39,7 +39,7 @@
               "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/22730e10-96f6-4aac-ad84-9383d35b5917",
               "description": "Open remote management ports expose your VM to a high level of risk from internet-based attacks that attempt to brute force credentials to gain admin access to the machine.",
               "remediationDescription": "We recommend that you edit the inbound rules of the below virtual machines to restrict access to specific source ranges.<br>To restrict the access to your virtual machines: 1. Click on a VM from the list below 2. At the 'Networking' blade, click on each of the rules that allow management ports (e.g. RDP-3389, WINRM-5985, SSH-22) 3. Change the 'Action' property to 'Deny' 4. Click 'Save'",
-              "category": [
+              "categories": [
                 "Networking"
               ],
               "severity": "Medium",
diff --git a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/assessmentMetadata.json b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/assessmentMetadata.json
index 47a2a8e0c452..534b992680b6 100644
--- a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/assessmentMetadata.json
+++ b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/assessmentMetadata.json
@@ -314,11 +314,11 @@
           "type": "string",
           "description": "Human readable description of what you should do to mitigate this security issue"
         },
-        "category": {
+        "categories": {
           "type": "array",
           "items": {
             "type": "string",
-            "description": "The category of resource that is at risk when the assessment is unhealthy",
+            "description": "The categories of resource that is at risk when the assessment is unhealthy",
             "enum": [
               "Compute",
               "Networking",
@@ -327,7 +327,7 @@
               "IoT"
             ],
             "x-ms-enum": {
-              "name": "category",
+              "name": "categories",
               "modelAsString": true,
               "values": [
                 {
diff --git a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/CreateAssessmentsMetadata_subscription_example.json b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/CreateAssessmentsMetadata_subscription_example.json
index 617146f3ec81..64665047d6c9 100644
--- a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/CreateAssessmentsMetadata_subscription_example.json
+++ b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/CreateAssessmentsMetadata_subscription_example.json
@@ -6,10 +6,9 @@
     "assessmentMetadata": {
       "properties": {
         "displayName": "Install endpoint protection solution on virtual machine scale sets",
-        "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/26a828e1-e88f-464e-bbb3-c134a282b9de",
         "description": "Install an endpoint protection solution on your virtual machines scale sets, to protect them from threats and vulnerabilities.",
         "remediationDescription": "To install an endpoint protection solution: 1.  <a href=\"https://docs.microsoft.com/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-faq#how-do-i-turn-on-antimalware-in-my-virtual-machine-scale-set\">Follow the instructions in How do I turn on antimalware in my virtual machine scale set</a>",
-        "category": [
+        "categories": [
           "Compute"
         ],
         "severity": "Medium",
@@ -34,7 +33,7 @@
           "displayName": "My organization security assessment",
           "description": "Assessment that my organization created to view our security assessment in Azure Security Center",
           "remediationDescription": "Fix it with these remediation instructions",
-          "category": [
+          "categories": [
             "Compute"
           ],
           "severity": "Medium",
diff --git a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/GetAssessmentsMetadata_example.json b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/GetAssessmentsMetadata_example.json
index f2202a19c14f..d57abd27d2c5 100644
--- a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/GetAssessmentsMetadata_example.json
+++ b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/GetAssessmentsMetadata_example.json
@@ -14,7 +14,7 @@
           "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/26a828e1-e88f-464e-bbb3-c134a282b9de",
           "description": "Install an endpoint protection solution on your virtual machines scale sets, to protect them from threats and vulnerabilities.",
           "remediationDescription": "To install an endpoint protection solution: 1.  <a href=\"https://docs.microsoft.com/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-faq#how-do-i-turn-on-antimalware-in-my-virtual-machine-scale-set\">Follow the instructions in How do I turn on antimalware in my virtual machine scale set</a>",
-          "category": [
+          "categories": [
             "Compute"
           ],
           "severity": "Medium",
diff --git a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/GetAssessmentsMetadata_subscription_example.json b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/GetAssessmentsMetadata_subscription_example.json
index ae60eb4cbb9e..39ee1e55064a 100644
--- a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/GetAssessmentsMetadata_subscription_example.json
+++ b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/GetAssessmentsMetadata_subscription_example.json
@@ -15,7 +15,7 @@
           "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/26a828e1-e88f-464e-bbb3-c134a282b9de",
           "description": "Install an endpoint protection solution on your virtual machines scale sets, to protect them from threats and vulnerabilities.",
           "remediationDescription": "To install an endpoint protection solution: 1.  <a href=\"https://docs.microsoft.com/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-faq#how-do-i-turn-on-antimalware-in-my-virtual-machine-scale-set\">Follow the instructions in How do I turn on antimalware in my virtual machine scale set</a>",
-          "category": [
+          "categories": [
             "Compute"
           ],
           "severity": "Medium",
diff --git a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/ListAssessmentsMetadata_example.json b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/ListAssessmentsMetadata_example.json
index 937869acbbd8..c1b1c467460c 100644
--- a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/ListAssessmentsMetadata_example.json
+++ b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/ListAssessmentsMetadata_example.json
@@ -15,7 +15,7 @@
               "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/26a828e1-e88f-464e-bbb3-c134a282b9de",
               "description": "Install an endpoint protection solution on your virtual machines scale sets, to protect them from threats and vulnerabilities.",
               "remediationDescription": "To install an endpoint protection solution: 1.  <a href=\"https://docs.microsoft.com/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-faq#how-do-i-turn-on-antimalware-in-my-virtual-machine-scale-set\">Follow the instructions in How do I turn on antimalware in my virtual machine scale set</a>",
-              "category": [
+              "categories": [
                 "Compute"
               ],
               "severity": "Medium",
@@ -38,7 +38,7 @@
               "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/22730e10-96f6-4aac-ad84-9383d35b5917",
               "description": "Open remote management ports expose your VM to a high level of risk from internet-based attacks that attempt to brute force credentials to gain admin access to the machine.",
               "remediationDescription": "We recommend that you edit the inbound rules of the below virtual machines to restrict access to specific source ranges.<br>To restrict the access to your virtual machines: 1. Click on a VM from the list below 2. At the 'Networking' blade, click on each of the rules that allow management ports (e.g. RDP-3389, WINRM-5985, SSH-22) 3. Change the 'Action' property to 'Deny' 4. Click 'Save'",
-              "category": [
+              "categories": [
                 "Networking"
               ],
               "severity": "Medium",
@@ -61,7 +61,7 @@
               "displayName": "My organization security assessment",
               "description": "Assessment that my organization created to view our security assessment in Azure Security Center",
               "remediationDescription": "Fix it with these remediation instructions",
-              "category": [
+              "categories": [
                 "Compute"
               ],
               "severity": "Medium",
diff --git a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/ListAssessmentsMetadata_subscription_example.json b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/ListAssessmentsMetadata_subscription_example.json
index 8bde3eae2b3d..1efdc0526ce9 100644
--- a/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/ListAssessmentsMetadata_subscription_example.json
+++ b/specification/security/resource-manager/Microsoft.Security/stable/2020-01-01/examples/AssessmentsMetadata/ListAssessmentsMetadata_subscription_example.json
@@ -16,7 +16,7 @@
               "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/26a828e1-e88f-464e-bbb3-c134a282b9de",
               "description": "Install an endpoint protection solution on your virtual machines scale sets, to protect them from threats and vulnerabilities.",
               "remediationDescription": "To install an endpoint protection solution: 1.  <a href=\"https://docs.microsoft.com/azure/virtual-machine-scale-sets/virtual-machine-scale-sets-faq#how-do-i-turn-on-antimalware-in-my-virtual-machine-scale-set\">Follow the instructions in How do I turn on antimalware in my virtual machine scale set</a>",
-              "category": [
+              "categories": [
                 "Compute"
               ],
               "severity": "Medium",
@@ -39,7 +39,7 @@
               "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/22730e10-96f6-4aac-ad84-9383d35b5917",
               "description": "Open remote management ports expose your VM to a high level of risk from internet-based attacks that attempt to brute force credentials to gain admin access to the machine.",
               "remediationDescription": "We recommend that you edit the inbound rules of the below virtual machines to restrict access to specific source ranges.<br>To restrict the access to your virtual machines: 1. Click on a VM from the list below 2. At the 'Networking' blade, click on each of the rules that allow management ports (e.g. RDP-3389, WINRM-5985, SSH-22) 3. Change the 'Action' property to 'Deny' 4. Click 'Save'",
-              "category": [
+              "categories": [
                 "Networking"
               ],
               "severity": "Medium",