diff --git a/index.html b/index.html
index cd13bbc4..3869cbcd 100644
--- a/index.html
+++ b/index.html
@@ -7364,11 +7364,12 @@ Immutable Identifiers
of the change in identifier when a change is made.
Note however that some classes of devices, e.g., medical devices,
may require immutable IDs by law in some jurisdictions.
-
- Ideally, any required immutable identifiers SHOULD only be
+
+ Ideally, any required immutable identifiers should only be
made available via affordances, such as a property, whose value can
only be obtained after appropriate authentication and
- authorization, and managed separately from the TD identifier.
+ authorization, and managed separately from the TD identifier.
+
If it is necessary to use an immutable identifier as the TD identifier,
extra attention should be paid to secure
access to files, such as Thing Descriptions, containing such
diff --git a/index.template.html b/index.template.html
index b3092b58..55d189ac 100644
--- a/index.template.html
+++ b/index.template.html
@@ -6073,11 +6073,12 @@ Immutable Identifiers
of the change in identifier when a change is made.
Note however that some classes of devices, e.g., medical devices,
may require immutable IDs by law in some jurisdictions.
-
- Ideally, any required immutable identifiers SHOULD only be
+
+ Ideally, any required immutable identifiers should only be
made available via affordances, such as a property, whose value can
only be obtained after appropriate authentication and
- authorization, and managed separately from the TD identifier.
+ authorization, and managed separately from the TD identifier.
+
If it is necessary to use an immutable identifier as the TD identifier,
extra attention should be paid to secure
access to files, such as Thing Descriptions, containing such