diff --git a/.markdownlintignore b/.markdownlintignore
new file mode 100644
index 00000000..1dc17385
--- /dev/null
+++ b/.markdownlintignore
@@ -0,0 +1,2 @@
+CODE_OF_CONDUCT.md
+SECURITY.md
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
index ffc6abbb..9a1aff41 100644
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -1,3 +1,3 @@
-# Community Code of Conduct
+## Prometheus Community Code of Conduct
 
 Prometheus follows the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/master/code-of-conduct.md).
diff --git a/SECURITY.md b/SECURITY.md
new file mode 100644
index 00000000..67741f01
--- /dev/null
+++ b/SECURITY.md
@@ -0,0 +1,6 @@
+# Reporting a security issue
+
+The Prometheus security policy, including how to report vulnerabilities, can be
+found here:
+
+https://prometheus.io/docs/operating/security/