diff --git a/SUPPORT.md b/SUPPORT.md
index 8070b2df99..12e77ab66b 100644
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -62,8 +62,8 @@ supported in this document.
 
     Status, AMD IOMMU: Supported
     Status, Intel VT-d: Supported
-    Status, ARM SMMUv1: Supported
-    Status, ARM SMMUv2: Supported
+    Status, ARM SMMUv1: Supported, not security supported
+    Status, ARM SMMUv2: Supported, not security supported
     Status, Renesas IPMMU-VMSA: Tech Preview
 
 ### ARM/GICv3 ITS