diff --git a/locales/en/out/constants.i18n.json b/locales/en/out/constants.i18n.json
index bbbe28c7e..6e2f51010 100644
--- a/locales/en/out/constants.i18n.json
+++ b/locales/en/out/constants.i18n.json
@@ -1,5 +1,7 @@
 {
+  "dialogResponses.agreeAndRun": "Agree and Run",
   "dialogResponses.acceptPrivacy": "Got it",
+  "dialogResponses.cancel": "Cancel",
   "dialogResponses.dontShowAgain": "Don't Show Again",
   "dialogResponses.exampleCode": "Example Code on GitHub",
   "dialogResponses.help": "I need help",
@@ -27,5 +29,6 @@
   "info.thirdPartyWebsite": "You will be redirect to adafruit.com, a website outside Microsoft. Read the privacy statement on Adafruit:",
   "info.welcomeOutputTab": "Welcome to the Adafruit Simulator output tab !\n\n",
   "label.webviewPanel": "Adafruit CPX",
-  "name": "Pacifica Simulator"
-}
+  "name": "Pacifica Simulator",
+  "warning.agreeAndRun": "By selecting ‘Agree and Run’, you understand the extension executes Python code on your local computer, which may be a potential security risk."
+}
\ No newline at end of file
diff --git a/src/constants.ts b/src/constants.ts
index f99d75f38..8d87b8a1f 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -114,7 +114,10 @@ export const CONSTANTS = {
     TUTORIALS:
       "https://learn.adafruit.com/circuitpython-made-easy-on-circuit-playground-express/circuit-playground-express-library"
   },
-  NAME: localize("name", "Pacifica Simulator")
+  NAME: localize("name", "Pacifica Simulator"),
+  WARNING: {
+    ACCEPT_AND_RUN: localize("warning.agreeAndRun", "By selecting ‘Agree and Run’, you understand the extension executes Python code on your local computer, which may be a potential security risk."),
+  }
 };
 
 // Need the different events we want to track and the name of it
@@ -161,6 +164,12 @@ export enum WebviewMessages {
 
 // tslint:disable-next-line: no-namespace
 export namespace DialogResponses {
+  export const ACCEPT_AND_RUN: MessageItem = {
+    title: localize("dialogResponses.agreeAndRun", "Agree and Run")
+  };
+  export const CANCEL: MessageItem = {
+    title: localize("dialogResponses.cancel", "Cancel")
+  }
   export const HELP: MessageItem = {
     title: localize("dialogResponses.help", "I need help")
   };
diff --git a/src/extension.ts b/src/extension.ts
index a3de393b8..a9c93d876 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -23,6 +23,7 @@ let pythonExecutableName: string = "python";
 let firstTimeClosed: boolean = true;
 let shouldShowNewProject: boolean = true;
 let shouldShowInvalidFileNamePopup: boolean = true;
+let shouldShowRunCodePopup: boolean = true;
 
 function loadScript(context: vscode.ExtensionContext, scriptPath: string) {
   return `<script src="${vscode.Uri.file(context.asAbsolutePath(scriptPath))
@@ -234,6 +235,25 @@ export async function activate(context: vscode.ExtensionContext) {
   };
 
   const runSimulatorCommand = async () => {
+    if (shouldShowRunCodePopup) {
+      const shouldExitCommand = await vscode.window
+        .showWarningMessage(
+          CONSTANTS.WARNING.ACCEPT_AND_RUN,
+          DialogResponses.ACCEPT_AND_RUN,
+          DialogResponses.CANCEL
+        )
+        .then((selection: vscode.MessageItem | undefined) => {
+          let hasAccepted = true;
+          if (selection === DialogResponses.ACCEPT_AND_RUN) {
+            shouldShowRunCodePopup = false;
+            hasAccepted = false;
+          }
+          return hasAccepted;
+        });
+      // Don't run users code if they don't accept
+      if (shouldExitCommand) { return; }
+    }
+
     openWebview();
 
     if (!currentPanel) {