diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-07-01/examples/ManagedClustersCreate_SecurityProfile.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-07-01/examples/ManagedClustersCreate_SecurityProfile.json
new file mode 100644
index 000000000000..246b9da63e52
--- /dev/null
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-07-01/examples/ManagedClustersCreate_SecurityProfile.json
@@ -0,0 +1,227 @@
+{
+  "parameters": {
+    "api-version": "2021-07-01",
+    "subscriptionId": "subid1",
+    "resourceGroupName": "rg1",
+    "resourceName": "clustername1",
+    "parameters": {
+      "location": "location1",
+      "tags": {
+        "tier": "production",
+        "archv2": ""
+      },
+      "sku": {
+        "name": "Basic",
+        "tier": "Free"
+      },
+      "properties": {
+        "kubernetesVersion": "",
+        "dnsPrefix": "dnsprefix1",
+        "agentPoolProfiles": [
+          {
+            "name": "nodepool1",
+            "count": 3,
+            "vmSize": "Standard_DS2_v2",
+            "osType": "Linux",
+            "type": "VirtualMachineScaleSets",
+            "enableNodePublicIP": true,
+            "mode": "System"
+          }
+        ],
+        "linuxProfile": {
+          "adminUsername": "azureuser",
+          "ssh": {
+            "publicKeys": [
+              {
+                "keyData": "keydata"
+              }
+            ]
+          }
+        },
+        "networkProfile": {
+          "loadBalancerSku": "standard",
+          "outboundType": "loadBalancer",
+          "loadBalancerProfile": {
+            "managedOutboundIPs": {
+              "count": 2
+            }
+          }
+        },
+        "securityProfile": {
+          "azureDefender": {
+            "enabled": true,
+            "logAnalyticsWorkspaceResourceId": "/subscriptions/SUB_ID/resourcegroups/RG_NAME/providers/microsoft.operationalinsights/workspaces/WORKSPACE_NAME"
+          }
+        }
+      }
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "/subscriptions/subid1/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1",
+        "location": "location1",
+        "name": "clustername1",
+        "tags": {
+          "archv2": "",
+          "tier": "production"
+        },
+        "type": "Microsoft.ContainerService/ManagedClusters",
+        "properties": {
+          "provisioningState": "Succeeded",
+          "maxAgentPools": 1,
+          "kubernetesVersion": "1.9.6",
+          "dnsPrefix": "dnsprefix1",
+          "agentPoolProfiles": [
+            {
+              "name": "nodepool1",
+              "count": 3,
+              "vmSize": "Standard_DS2_v2",
+              "maxPods": 110,
+              "osType": "Linux",
+              "provisioningState": "Succeeded",
+              "orchestratorVersion": "1.9.6",
+              "type": "VirtualMachineScaleSets",
+              "enableNodePublicIP": true,
+              "mode": "System",
+              "nodeImageVersion": "AKSUbuntu:1604:2020.03.11"
+            }
+          ],
+          "linuxProfile": {
+            "adminUsername": "azureuser",
+            "ssh": {
+              "publicKeys": [
+                {
+                  "keyData": "keydata"
+                }
+              ]
+            }
+          },
+          "windowsProfile": {
+            "adminUsername": "azureuser"
+          },
+          "servicePrincipalProfile": {
+            "clientId": "clientid"
+          },
+          "nodeResourceGroup": "MC_rg1_clustername1_location1",
+          "enableRBAC": true,
+          "diskEncryptionSetID": "/subscriptions/subid1/resourceGroups/rg1/providers/Microsoft.Compute/diskEncryptionSets/des",
+          "enablePodSecurityPolicy": true,
+          "fqdn": "dnsprefix1-abcd1234.hcp.eastus.azmk8s.io",
+          "networkProfile": {
+            "loadBalancerSku": "basic",
+            "networkPlugin": "kubenet",
+            "podCidr": "10.244.0.0/16",
+            "serviceCidr": "10.0.0.0/16",
+            "dnsServiceIP": "10.0.0.10",
+            "dockerBridgeCidr": "172.17.0.1/16",
+            "outboundType": "loadBalancer",
+            "loadBalancerProfile": {
+              "allocatedOutboundPorts": 2000,
+              "idleTimeoutInMinutes": 10,
+              "managedOutboundIPs": {
+                "count": 2
+              },
+              "effectiveOutboundIPs": [
+                {
+                  "id": "/subscriptions/subid1/resourceGroups/MC_rg1/providers/Microsoft.Network/publicIPAddresses/mgdoutboundip1"
+                },
+                {
+                  "id": "/subscriptions/subid1/resourceGroups/MC_rg1/providers/Microsoft.Network/publicIPAddresses/mgdoutboundip2"
+                }
+              ]
+            }
+          },
+          "securityProfile": {
+            "azureDefender": {
+              "enabled": true,
+              "logAnalyticsWorkspaceResourceId": "/subscriptions/SUB_ID/resourcegroups/RG_NAME/providers/microsoft.operationalinsights/workspaces/WORKSPACE_NAME"
+            }
+          }
+        }
+      }
+    },
+    "201": {
+      "body": {
+        "id": "/subscriptions/subid1/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1",
+        "location": "location1",
+        "name": "clustername1",
+        "tags": {
+          "archv2": "",
+          "tier": "production"
+        },
+        "type": "Microsoft.ContainerService/ManagedClusters",
+        "properties": {
+          "provisioningState": "Creating",
+          "maxAgentPools": 1,
+          "kubernetesVersion": "1.9.6",
+          "dnsPrefix": "dnsprefix1",
+          "agentPoolProfiles": [
+            {
+              "name": "nodepool1",
+              "count": 3,
+              "vmSize": "Standard_DS2_v2",
+              "maxPods": 110,
+              "osType": "Linux",
+              "provisioningState": "Creating",
+              "orchestratorVersion": "1.9.6",
+              "type": "VirtualMachineScaleSets",
+              "enableNodePublicIP": true,
+              "mode": "System"
+            }
+          ],
+          "linuxProfile": {
+            "adminUsername": "azureuser",
+            "ssh": {
+              "publicKeys": [
+                {
+                  "keyData": "keydata"
+                }
+              ]
+            }
+          },
+          "windowsProfile": {
+            "adminUsername": "azureuser"
+          },
+          "servicePrincipalProfile": {
+            "clientId": "clientid"
+          },
+          "nodeResourceGroup": "MC_rg1_clustername1_location1",
+          "enableRBAC": true,
+          "diskEncryptionSetID": "/subscriptions/subid1/resourceGroups/rg1/providers/Microsoft.Compute/diskEncryptionSets/des",
+          "enablePodSecurityPolicy": true,
+          "networkProfile": {
+            "networkPlugin": "kubenet",
+            "podCidr": "10.244.0.0/16",
+            "serviceCidr": "10.0.0.0/16",
+            "dnsServiceIP": "10.0.0.10",
+            "dockerBridgeCidr": "172.17.0.1/16",
+            "loadBalancerSku": "standard",
+            "outboundType": "loadBalancer",
+            "loadBalancerProfile": {
+              "allocatedOutboundPorts": 2000,
+              "idleTimeoutInMinutes": 10,
+              "managedOutboundIPs": {
+                "count": 2
+              },
+              "effectiveOutboundIPs": [
+                {
+                  "id": "/subscriptions/subid1/resourceGroups/MC_rg1/providers/Microsoft.Network/publicIPAddresses/mgdoutboundip1"
+                },
+                {
+                  "id": "/subscriptions/subid1/resourceGroups/MC_rg1/providers/Microsoft.Network/publicIPAddresses/mgdoutboundip2"
+                }
+              ]
+            }
+          },
+          "securityProfile": {
+            "azureDefender": {
+              "enabled": true,
+              "logAnalyticsWorkspaceResourceId": "/subscriptions/SUB_ID/resourcegroups/RG_NAME/providers/microsoft.operationalinsights/workspaces/WORKSPACE_NAME"
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-07-01/managedClusters.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-07-01/managedClusters.json
index 61d739b1ef53..16b9c52e83ce 100644
--- a/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-07-01/managedClusters.json
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-07-01/managedClusters.json
@@ -549,6 +549,9 @@
           },
           "Create Managed Cluster with HTTP proxy configured": {
             "$ref": "./examples/ManagedClustersCreate_HTTPProxy.json"
+          },
+          "Create Managed Cluster with Security Profile configured": {
+            "$ref": "./examples/ManagedClustersCreate_SecurityProfile.json"
           }
         }
       },
@@ -3469,6 +3472,10 @@
         "httpProxyConfig": {
           "$ref": "#/definitions/ManagedClusterHTTPProxyConfig",
           "description": "Configurations for provisioning the cluster with HTTP proxy servers."
+        },
+        "securityProfile": {
+          "$ref": "#/definitions/ManagedClusterSecurityProfile",
+          "description": "Security profile for the managed cluster."
         }
       },
       "description": "Properties of the managed cluster."
@@ -4890,6 +4897,30 @@
           "readOnly": true
         }
       }
+    },
+    "ManagedClusterSecurityProfile": {
+      "type": "object",
+      "properties": {
+        "azureDefender": {
+          "$ref": "#/definitions/ManagedClusterSecurityProfileAzureDefender",
+          "description": "Azure Defender settings for the Security Profile."
+        }
+      },
+      "description": "Security Profile for the container service cluster."
+    },
+    "ManagedClusterSecurityProfileAzureDefender": {
+      "type": "object",
+      "properties": {
+        "enabled": {
+          "type": "boolean",
+          "description": "Whether to enable Azure Defender"
+        },
+        "logAnalyticsWorkspaceResourceId": {
+          "type": "string",
+          "description": "Resource Id of the Log Analytics workspace for Azure Defender to be associated with. This field is required and must be valid workspace resource id in case the Azure Defender settings are enabled and must be empty or not exists in case it is disabled"
+        }
+      },
+      "description": "Azure Defender settings for the Security Profile."
     }
   },
   "parameters": {