diff --git a/ChangeLog.d/platform-zeroization.txt b/ChangeLog.d/platform-zeroization.txt
new file mode 100644
index 0000000..f17fbbb
--- /dev/null
+++ b/ChangeLog.d/platform-zeroization.txt
@@ -0,0 +1,3 @@
+Security
+  * Use platform-provided secure zeroization function where possible, such as
+    explicit_bzero().