diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74f0e13..1a6539e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+* The key file can be read and written only by the owner
+
 ### Changed
 
 ### Fixed
diff --git a/shellpki b/shellpki
index 0f1d520..2ec85f7 100755
--- a/shellpki
+++ b/shellpki
@@ -692,6 +692,7 @@ create() {
             >/dev/null 2>&1
         # shellcheck disable=SC2181
         if [ "$?" -eq 0 ]; then
+            chmod 600 "${key_file}"
             echo "The KEY file is available at \`${key_file}'"
         else
             error "Error generating the private key"