diff --git a/classes/LBRYPress.php b/classes/LBRYPress.php
index 52f392d..2220953 100644
--- a/classes/LBRYPress.php
+++ b/classes/LBRYPress.php
@@ -4,6 +4,7 @@
  *
  * @package LBRYPress
  */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRYPress
 {
diff --git a/classes/LBRY_Admin_Notice.php b/classes/LBRY_Admin_Notice.php
index bca4fa9..4d3ff09 100644
--- a/classes/LBRY_Admin_Notice.php
+++ b/classes/LBRY_Admin_Notice.php
@@ -4,6 +4,7 @@
 *
 * @package LBRYPress
 */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRY_Admin_Notice
 {
diff --git a/classes/LBRY_Daemon.php b/classes/LBRY_Daemon.php
index 81c6f76..26fd78e 100644
--- a/classes/LBRY_Daemon.php
+++ b/classes/LBRY_Daemon.php
@@ -4,6 +4,7 @@
  *
  * @package LBRYPress
  */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRY_Daemon
 {
diff --git a/classes/LBRY_Daemon_Logger.php b/classes/LBRY_Daemon_Logger.php
index 8bad832..d0d6e9d 100644
--- a/classes/LBRY_Daemon_Logger.php
+++ b/classes/LBRY_Daemon_Logger.php
@@ -4,6 +4,7 @@
  *
  * @package LBRYPress
  */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRY_Daemon_Logger
 {
diff --git a/classes/LBRY_Network_Parser.php b/classes/LBRY_Network_Parser.php
index 6c7a0d7..5e26257 100644
--- a/classes/LBRY_Network_Parser.php
+++ b/classes/LBRY_Network_Parser.php
@@ -8,6 +8,7 @@ use League\HTMLToMarkdown\HtmlConverter;
  *
  * @package LBRYPress
  */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRY_Network_Parser
 {
diff --git a/classes/LBRY_Network_Publisher.php b/classes/LBRY_Network_Publisher.php
index 8761904..d4725b3 100644
--- a/classes/LBRY_Network_Publisher.php
+++ b/classes/LBRY_Network_Publisher.php
@@ -4,6 +4,7 @@
  *
  * @package LBRYPress
  */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRY_Network_Publisher
 {
diff --git a/classes/LBRY_Notifier.php b/classes/LBRY_Notifier.php
index c373442..a509e30 100644
--- a/classes/LBRY_Notifier.php
+++ b/classes/LBRY_Notifier.php
@@ -4,6 +4,7 @@
  *
  * @package LBRYPress
  */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRY_Notifier
 {
diff --git a/classes/LBRY_Speech.php b/classes/LBRY_Speech.php
index 64b3d33..11f34f0 100644
--- a/classes/LBRY_Speech.php
+++ b/classes/LBRY_Speech.php
@@ -6,6 +6,7 @@
  *
  * @package LBRYPress
  */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRY_Speech
 {
diff --git a/classes/LBRY_Speech_Media.php b/classes/LBRY_Speech_Media.php
index 97b512c..1e1f866 100644
--- a/classes/LBRY_Speech_Media.php
+++ b/classes/LBRY_Speech_Media.php
@@ -6,6 +6,7 @@
  *
  * @package LBRYPress
  */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRY_Speech_Media
 {
diff --git a/classes/LBRY_Speech_Parser.php b/classes/LBRY_Speech_Parser.php
index b8b69cf..b47f292 100644
--- a/classes/LBRY_Speech_Parser.php
+++ b/classes/LBRY_Speech_Parser.php
@@ -4,6 +4,7 @@
  *
  * @package LBRYPress
  */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRY_Speech_Parser
 {
diff --git a/classes/lbry_post_handler.php b/classes/lbry_post_handler.php
index e5d3487..4088b52 100644
--- a/classes/lbry_post_handler.php
+++ b/classes/lbry_post_handler.php
@@ -5,6 +5,7 @@
  *
  * @package LBRYPress
  */
+defined('ABSPATH') || die(); // Exit if accessed directly
 
 class LBRY_Post_Handler
 {
diff --git a/templates/requirements-error.php b/templates/requirements-error.php
index fcf393f..6eda6de 100644
--- a/templates/requirements-error.php
+++ b/templates/requirements-error.php
@@ -1,3 +1,6 @@
+<?php
+defined('ABSPATH') || die(); // Exit if accessed directly
+?>
 <div class="error">
 	<p><?php echo LBRY_NAME; ?> error: Your environment doesn't meet all of the system requirements listed below.</p>