diff --git a/etc/default/grub.d/lockdown.cfg b/etc/default/grub.d/lockdown.cfg
new file mode 100644
index 00000000..63a1d757
--- /dev/null
+++ b/etc/default/grub.d/lockdown.cfg
@@ -0,0 +1,6 @@
+# Enable the kernel lockdown feature. If set to integrity, kernel features
+# that allow userland to modify the running kernel are disabled. If set to
+# confidentiality, kernel features that allow userland to extract
+# confidential information from the kernel are also disabled.
+# https://www.kernel.org/doc/html/latest/admin-guide/kernel-parameters.html
+GRUB_CMDLINE_LINUX_DEFAULT="$GRUB_CMDLINE_LINUX_DEFAULT lockdown=confidentiality"