diff --git a/src/Modules/Windows/Microsoft.PowerShell.Security/Microsoft.PowerShell.Security.psd1 b/src/Modules/Windows/Microsoft.PowerShell.Security/Microsoft.PowerShell.Security.psd1
index b88bc92d2a2..6d47b2ce2cd 100644
--- a/src/Modules/Windows/Microsoft.PowerShell.Security/Microsoft.PowerShell.Security.psd1
+++ b/src/Modules/Windows/Microsoft.PowerShell.Security/Microsoft.PowerShell.Security.psd1
@@ -10,5 +10,6 @@ FunctionsToExport = @()
 CmdletsToExport="Get-Acl", "Set-Acl", "Get-PfxCertificate", "Get-Credential", "Get-ExecutionPolicy", "Set-ExecutionPolicy", "Get-AuthenticodeSignature", "Set-AuthenticodeSignature", "ConvertFrom-SecureString", "ConvertTo-SecureString", "Get-CmsMessage", "Unprotect-CmsMessage", "Protect-CmsMessage" , "New-FileCatalog" , "Test-FileCatalog"
 AliasesToExport = @()
 NestedModules="Microsoft.PowerShell.Security.dll"
+TypesToProcess="Security.types.ps1xml"
 HelpInfoURI = 'https://aka.ms/powershell73-help'
 }
diff --git a/src/Modules/Windows/Microsoft.PowerShell.Security/Security.types.ps1xml b/src/Modules/Windows/Microsoft.PowerShell.Security/Security.types.ps1xml
new file mode 100644
index 00000000000..b1171c98e6a
--- /dev/null
+++ b/src/Modules/Windows/Microsoft.PowerShell.Security/Security.types.ps1xml
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!-- *******************************************************************
+These sample files contain type information used by the PowerShell engine.
+Do not edit or change the contents of this file directly.
+Please see the PowerShell documentation or type "Get-Help Update-TypeData"
+for more information.
+
+Copyright (c) Microsoft Corporation.
+
+THIS SAMPLE CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY
+OF ANY KIND,WHETHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
+PURPOSE. IF THIS CODE AND INFORMATION IS MODIFIED, THE ENTIRE RISK OF USE
+OR RESULTS IN CONNECTION WITH THE USE OF THIS CODE AND INFORMATION
+REMAINS WITH THE USER.
+******************************************************************** -->
+
+<Types>
+  <Type>
+    <Name>System.Security.AccessControl.ObjectSecurity</Name>
+    <Members>
+      <CodeProperty>
+        <Name>Path</Name>
+        <GetCodeReference>
+          <TypeName>Microsoft.PowerShell.Commands.SecurityDescriptorCommandsBase</TypeName>
+          <MethodName>GetPath</MethodName>
+        </GetCodeReference>
+      </CodeProperty>
+      <CodeProperty>
+        <Name>Owner</Name>
+        <GetCodeReference>
+          <TypeName>Microsoft.PowerShell.Commands.SecurityDescriptorCommandsBase</TypeName>
+          <MethodName>GetOwner</MethodName>
+        </GetCodeReference>
+      </CodeProperty>
+      <CodeProperty>
+        <Name>Group</Name>
+        <GetCodeReference>
+          <TypeName>Microsoft.PowerShell.Commands.SecurityDescriptorCommandsBase</TypeName>
+          <MethodName>GetGroup</MethodName>
+        </GetCodeReference>
+      </CodeProperty>
+      <CodeProperty>
+        <Name>Access</Name>
+        <GetCodeReference>
+          <TypeName>Microsoft.PowerShell.Commands.SecurityDescriptorCommandsBase</TypeName>
+          <MethodName>GetAccess</MethodName>
+        </GetCodeReference>
+      </CodeProperty>
+      <CodeProperty>
+        <Name>Sddl</Name>
+        <GetCodeReference>
+          <TypeName>Microsoft.PowerShell.Commands.SecurityDescriptorCommandsBase</TypeName>
+          <MethodName>GetSddl</MethodName>
+        </GetCodeReference>
+      </CodeProperty>
+      <ScriptProperty>
+        <Name>AccessToString</Name>
+        <GetScriptBlock>
+          $toString = "";
+          $first = $true;
+          if ( ! $this.Access ) { return "" }
+          foreach($ace in $this.Access)
+          {
+          if($first)
+          {
+          $first = $false;
+          }
+          else
+          {
+          $tostring += "`n";
+          }
+          $toString += $ace.IdentityReference.ToString();
+          $toString += " ";
+          $toString += $ace.AccessControlType.ToString();
+          $toString += "  ";
+          if($ace -is [System.Security.AccessControl.FileSystemAccessRule])
+          {
+          $toString += $ace.FileSystemRights.ToString();
+          }
+          elseif($ace -is  [System.Security.AccessControl.RegistryAccessRule])
+          {
+          $toString += $ace.RegistryRights.ToString();
+          }
+          }
+          return $toString;
+        </GetScriptBlock>
+      </ScriptProperty>
+      <ScriptProperty>
+        <Name>AuditToString</Name>
+        <GetScriptBlock>
+          $toString = "";
+          $first = $true;
+          if ( ! (&amp; { Set-StrictMode -Version 1; $this.audit }) ) { return "" }
+          foreach($ace in (&amp; { Set-StrictMode -Version 1; $this.audit }))
+          {
+          if($first)
+          {
+          $first = $false;
+          }
+          else
+          {
+          $tostring += "`n";
+          }
+          $toString += $ace.IdentityReference.ToString();
+          $toString += " ";
+          $toString += $ace.AuditFlags.ToString();
+          $toString += "  ";
+          if($ace -is [System.Security.AccessControl.FileSystemAuditRule])
+          {
+          $toString += $ace.FileSystemRights.ToString();
+          }
+          elseif($ace -is [System.Security.AccessControl.RegistryAuditRule])
+          {
+          $toString += $ace.RegistryRights.ToString();
+          }
+          }
+          return $toString;
+        </GetScriptBlock>
+      </ScriptProperty>
+    </Members>
+  </Type>
+
+</Types>
diff --git a/src/System.Management.Automation/engine/TypeTable_Types_Ps1Xml.cs b/src/System.Management.Automation/engine/TypeTable_Types_Ps1Xml.cs
index bb267267b31..5ecd5914904 100644
--- a/src/System.Management.Automation/engine/TypeTable_Types_Ps1Xml.cs
+++ b/src/System.Management.Automation/engine/TypeTable_Types_Ps1Xml.cs
@@ -4081,152 +4081,6 @@ private void Process_Types_Ps1Xml(string filePath, ConcurrentBag<string> errors)
 
             #endregion System.Management.ManagementObject
 
-            #region System.Security.AccessControl.ObjectSecurity
-
-            typeName = @"System.Security.AccessControl.ObjectSecurity";
-            typeMembers = _extendedMembers.GetOrAdd(typeName, static key => new PSMemberInfoInternalCollection<PSMemberInfo>(capacity: 7));
-            Type securityDescriptorCommandsBaseType = TypeResolver.ResolveType("Microsoft.PowerShell.Commands.SecurityDescriptorCommandsBase", exception: out _);
-
-            // Process regular members.
-            newMembers.Add(@"Path");
-            AddMember(
-                errors,
-                typeName,
-                new PSCodeProperty(
-                    @"Path",
-                    GetMethodInfo(securityDescriptorCommandsBaseType, @"GetPath"),
-                    setterCodeReference: null),
-                typeMembers,
-                isOverride: false);
-
-            newMembers.Add(@"Owner");
-            AddMember(
-                errors,
-                typeName,
-                new PSCodeProperty(
-                    @"Owner",
-                    GetMethodInfo(securityDescriptorCommandsBaseType, @"GetOwner"),
-                    setterCodeReference: null),
-                typeMembers,
-                isOverride: false);
-
-            newMembers.Add(@"Group");
-            AddMember(
-                errors,
-                typeName,
-                new PSCodeProperty(
-                    @"Group",
-                    GetMethodInfo(securityDescriptorCommandsBaseType, @"GetGroup"),
-                    setterCodeReference: null),
-                typeMembers,
-                isOverride: false);
-
-            newMembers.Add(@"Access");
-            AddMember(
-                errors,
-                typeName,
-                new PSCodeProperty(
-                    @"Access",
-                    GetMethodInfo(securityDescriptorCommandsBaseType, @"GetAccess"),
-                    setterCodeReference: null),
-                typeMembers,
-                isOverride: false);
-
-            newMembers.Add(@"Sddl");
-            AddMember(
-                errors,
-                typeName,
-                new PSCodeProperty(
-                    @"Sddl",
-                    GetMethodInfo(securityDescriptorCommandsBaseType, @"GetSddl"),
-                    setterCodeReference: null),
-                typeMembers,
-                isOverride: false);
-
-            newMembers.Add(@"AccessToString");
-            AddMember(
-                errors,
-                typeName,
-                new PSScriptProperty(
-                    @"AccessToString",
-                    GetScriptBlock(@"$toString = """";
-          $first = $true;
-          if ( ! $this.Access ) { return """" }
-
-          foreach($ace in $this.Access)
-          {
-          if($first)
-          {
-          $first = $false;
-          }
-          else
-          {
-          $tostring += ""`n"";
-          }
-
-          $toString += $ace.IdentityReference.ToString();
-          $toString += "" "";
-          $toString += $ace.AccessControlType.ToString();
-          $toString += ""  "";
-          if($ace -is [System.Security.AccessControl.FileSystemAccessRule])
-          {
-          $toString += $ace.FileSystemRights.ToString();
-          }
-          elseif($ace -is  [System.Security.AccessControl.RegistryAccessRule])
-          {
-          $toString += $ace.RegistryRights.ToString();
-          }
-          }
-
-          return $toString;"),
-                    setterScript: null,
-                    shouldCloneOnAccess: true),
-                typeMembers,
-                isOverride: false);
-
-            newMembers.Add(@"AuditToString");
-            AddMember(
-                errors,
-                typeName,
-                new PSScriptProperty(
-                    @"AuditToString",
-                    GetScriptBlock(@"$toString = """";
-          $first = $true;
-          if ( ! (& { Set-StrictMode -Version 1; $this.audit }) ) { return """" }
-
-          foreach($ace in (& { Set-StrictMode -Version 1; $this.audit }))
-          {
-          if($first)
-          {
-          $first = $false;
-          }
-          else
-          {
-          $tostring += ""`n"";
-          }
-
-          $toString += $ace.IdentityReference.ToString();
-          $toString += "" "";
-          $toString += $ace.AuditFlags.ToString();
-          $toString += ""  "";
-          if($ace -is [System.Security.AccessControl.FileSystemAuditRule])
-          {
-          $toString += $ace.FileSystemRights.ToString();
-          }
-          elseif($ace -is [System.Security.AccessControl.RegistryAuditRule])
-          {
-          $toString += $ace.RegistryRights.ToString();
-          }
-          }
-
-          return $toString;"),
-                    setterScript: null,
-                    shouldCloneOnAccess: true),
-                typeMembers,
-                isOverride: false);
-
-            #endregion System.Security.AccessControl.ObjectSecurity
-
             #region Microsoft.PowerShell.Commands.HistoryInfo
 
             typeName = @"Microsoft.PowerShell.Commands.HistoryInfo";
diff --git a/test/powershell/Host/Startup.Tests.ps1 b/test/powershell/Host/Startup.Tests.ps1
index d0d8662cc93..1e49d9a6a36 100644
--- a/test/powershell/Host/Startup.Tests.ps1
+++ b/test/powershell/Host/Startup.Tests.ps1
@@ -15,7 +15,6 @@ Describe "Validate start of console host" -Tag CI {
             'pwsh.dll'
             'System.Collections.Concurrent.dll'
             'System.Collections.dll'
-            'System.Collections.NonGeneric.dll'
             'System.Collections.Specialized.dll'
             'System.ComponentModel.dll'
             'System.ComponentModel.Primitives.dll'
diff --git a/test/powershell/engine/ETS/TypeTable.Tests.ps1 b/test/powershell/engine/ETS/TypeTable.Tests.ps1
index 55b909145a8..f523f9c1234 100644
--- a/test/powershell/engine/ETS/TypeTable.Tests.ps1
+++ b/test/powershell/engine/ETS/TypeTable.Tests.ps1
@@ -19,9 +19,9 @@ Describe "Built-in type information tests" -Tag "CI" {
 
     It "Should have correct number of built-in type items in type table" {
         $expected = if ($IsWindows) {
-            273
-        } else {
             272
+        } else {
+            271
         }
         $types.Count | Should -BeExactly $expected
     }