diff --git a/code/modules/modular_computers/computers/item/pda.dm b/code/modules/modular_computers/computers/item/pda.dm
index d21a3e20475..c375fe9a5c1 100644
--- a/code/modules/modular_computers/computers/item/pda.dm
+++ b/code/modules/modular_computers/computers/item/pda.dm
@@ -79,10 +79,6 @@
 	if(inserted_pai)
 		. += mutable_appearance(initial(icon), "pai_inserted")
 
-/obj/item/modular_computer/pda/attack_ai(mob/user)
-	to_chat(user, span_notice("It doesn't feel right to snoop around like that..."))
-	return // we don't want ais or cyborgs using a private role tablet
-
 /obj/item/modular_computer/pda/interact(mob/user)
 	. = ..()
 	if(HAS_TRAIT(src, TRAIT_PDA_MESSAGE_MENU_RIGGED))
diff --git a/code/modules/modular_computers/file_system/programs/messenger/messenger_program.dm b/code/modules/modular_computers/file_system/programs/messenger/messenger_program.dm
index 1eeb54ff3b3..bcb79a2813e 100644
--- a/code/modules/modular_computers/file_system/programs/messenger/messenger_program.dm
+++ b/code/modules/modular_computers/file_system/programs/messenger/messenger_program.dm
@@ -337,6 +337,7 @@
 
 	static_data["can_spam"] = spam_mode
 	static_data["is_silicon"] = issilicon(user)
+	static_data["remote_silicon"] = (isAI(user) || iscyborg(user)) && !istype(computer, /obj/item/modular_computer/pda/silicon) //Silicon is accessing a PDA on the ground, not their internal one. Avoiding pAIs in this check.
 	static_data["alert_able"] = alert_able
 
 	return static_data
diff --git a/tgui/packages/tgui/interfaces/NtosMessenger/index.tsx b/tgui/packages/tgui/interfaces/NtosMessenger/index.tsx
index 896ca90d602..b04119150c6 100644
--- a/tgui/packages/tgui/interfaces/NtosMessenger/index.tsx
+++ b/tgui/packages/tgui/interfaces/NtosMessenger/index.tsx
@@ -11,6 +11,7 @@ import {
   Divider,
   Icon,
   Input,
+  NoticeBox,
   Section,
   Stack,
   TextArea,
@@ -22,6 +23,7 @@ import { NtChat, NtMessenger, NtPicture } from './types';
 type NtosMessengerData = {
   can_spam: BooleanLike;
   is_silicon: BooleanLike;
+  remote_silicon: BooleanLike;
   owner?: NtMessenger;
   saved_chats: Record<string, NtChat>;
   messengers: Record<string, NtMessenger>;
@@ -41,6 +43,7 @@ export const NtosMessenger = (props) => {
   const { data } = useBackend<NtosMessengerData>();
   const {
     is_silicon,
+    remote_silicon,
     saved_chats,
     stored_photos,
     selected_photo_path,
@@ -50,7 +53,9 @@ export const NtosMessenger = (props) => {
   } = data;
 
   let content: JSX.Element;
-  if (open_chat !== null) {
+  if (remote_silicon) {
+    content = <AccessDeniedScreen />;
+  } else if (open_chat !== null) {
     const openChat = saved_chats[open_chat];
     const temporaryRecipient = messengers[open_chat];
 
@@ -82,6 +87,41 @@ export const NtosMessenger = (props) => {
   );
 };
 
+const AccessDeniedScreen = (props: any) => {
+  const { act, data } = useBackend<NtosMessengerData>();
+
+  return (
+    <Stack fill vertical>
+      <Stack.Item>
+        <Section>
+          <Stack vertical textAlign="center">
+            <Box bold>
+              <Icon name="address-card" />
+              SpaceMessenger V6.5.3
+            </Box>
+          </Stack>
+        </Section>
+      </Stack.Item>
+      <NoticeBox
+        color="white"
+        position="relative"
+        top="30%"
+        fontSize="30px"
+        textAlign="center"
+      >
+        ERROR: CONNECTION REFUSED
+      </NoticeBox>
+      <Stack vertical position="relative" top="35%" textAlign="left">
+        <Section>
+          <Box>Message from host:</Box>
+          <Box>- Remote access of this application has been restricted.</Box>
+          <Box>- Contact your Administrator for further assistance.</Box>
+        </Section>
+      </Stack>
+    </Stack>
+  );
+};
+
 const ContactsScreen = (props: any) => {
   const { act, data } = useBackend<NtosMessengerData>();
   const {