diff --git a/atomics/T1531/T1531.yaml b/atomics/T1531/T1531.yaml
index af6275c7..b847f027 100644
--- a/atomics/T1531/T1531.yaml
+++ b/atomics/T1531/T1531.yaml
@@ -89,6 +89,7 @@ atomic_tests:
     name: powershell
     elevation_required: false
 - name: Change User Password via passwd
+  auto_generated_guid: 3c717bf3-2ecc-4d79-8ac8-0bfbf08fbce6
   description: |
     This test changes the user password to hinder access to the account using passwd utility.
   supported_platforms:
@@ -105,6 +106,7 @@ atomic_tests:
     name: sh
     elevation_required: true
 - name: Delete User via dscl utility
+  auto_generated_guid: 4d938c43-2fe8-4d70-a5b3-5bf239aa7846
   description: |
     This test deletes the user account using the dscl utility.
   supported_platforms:
@@ -130,6 +132,7 @@ atomic_tests:
     name: sh
     elevation_required: true
 - name: Delete User via sysadminctl utility
+  auto_generated_guid: d3812c4e-30ee-466a-a0aa-07e355b561d6
   description: |
     This test deletes the user account using the sysadminctl utility.
   supported_platforms:
diff --git a/atomics/used_guids.txt b/atomics/used_guids.txt
index 3241d901..041bec3c 100644
--- a/atomics/used_guids.txt
+++ b/atomics/used_guids.txt
@@ -1315,3 +1315,6 @@ e9795c8d-42aa-4ed4-ad80-551ed793d006
 335a6b15-b8d2-4a3f-a973-ad69aa2620d7
 d1de3767-99c2-4c6c-8c5a-4ba4586474c8
 3b625eaa-c10d-4635-af96-3eae7d2a2f3c
+3c717bf3-2ecc-4d79-8ac8-0bfbf08fbce6
+4d938c43-2fe8-4d70-a5b3-5bf239aa7846
+d3812c4e-30ee-466a-a0aa-07e355b561d6