diff --git a/dots/bin/deploySshKeys.sh b/dots/bin/deploySshKeys.sh
index 7696c4b..10f7d6a 100644
--- a/dots/bin/deploySshKeys.sh
+++ b/dots/bin/deploySshKeys.sh
@@ -43,6 +43,7 @@ if [[ ${user_input} == "y" ]]; then
     echo "yes"
     echo "please, remember the hint: poq.l2"
     gpg -d ${trg_ssh_dir}/id_rsa.gpg > ${trg_ssh_dir}/id_rsa
+    chmod 0600 ${trg_ssh_dir}/id_rsa        # id_rsa can not be accessible by other users
 else
     echo "no worries. you can manually decrypt the file, if needed:"
     echo "gpg -d id_rsa.gpg > id_rsa"