diff --git a/macos/Ghostty.xcodeproj/project.pbxproj b/macos/Ghostty.xcodeproj/project.pbxproj
index 153b146a9..7c67ecf90 100644
--- a/macos/Ghostty.xcodeproj/project.pbxproj
+++ b/macos/Ghostty.xcodeproj/project.pbxproj
@@ -40,6 +40,9 @@
 		A5CEAFDC29B8009000646FDA /* SplitView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5CEAFDB29B8009000646FDA /* SplitView.swift */; };
 		A5CEAFDE29B8058B00646FDA /* SplitView.Divider.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5CEAFDD29B8058B00646FDA /* SplitView.Divider.swift */; };
 		A5CEAFFF29C2410700646FDA /* Backport.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5CEAFFE29C2410700646FDA /* Backport.swift */; };
+		A5E112932AF73E6E00C6E0C2 /* PasteProtection.xib in Resources */ = {isa = PBXBuildFile; fileRef = A5E112922AF73E6E00C6E0C2 /* PasteProtection.xib */; };
+		A5E112952AF73E8A00C6E0C2 /* PasteProtectionController.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5E112942AF73E8A00C6E0C2 /* PasteProtectionController.swift */; };
+		A5E112972AF7401B00C6E0C2 /* PasteProtectionView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5E112962AF7401B00C6E0C2 /* PasteProtectionView.swift */; };
 		A5FEB3002ABB69450068369E /* main.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5FEB2FF2ABB69450068369E /* main.swift */; };
 /* End PBXBuildFile section */
 
@@ -80,6 +83,9 @@
 		A5CEAFDD29B8058B00646FDA /* SplitView.Divider.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SplitView.Divider.swift; sourceTree = "<group>"; };
 		A5CEAFFE29C2410700646FDA /* Backport.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Backport.swift; sourceTree = "<group>"; };
 		A5D495A1299BEC7E00DD1313 /* GhosttyKit.xcframework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcframework; path = GhosttyKit.xcframework; sourceTree = "<group>"; };
+		A5E112922AF73E6E00C6E0C2 /* PasteProtection.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = PasteProtection.xib; sourceTree = "<group>"; };
+		A5E112942AF73E8A00C6E0C2 /* PasteProtectionController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PasteProtectionController.swift; sourceTree = "<group>"; };
+		A5E112962AF7401B00C6E0C2 /* PasteProtectionView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PasteProtectionView.swift; sourceTree = "<group>"; };
 		A5FEB2FF2ABB69450068369E /* main.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = main.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
@@ -101,6 +107,7 @@
 			children = (
 				A56D58872ACDE6BE00508D2C /* Services */,
 				A59630982AEE1C4400D64628 /* Terminal */,
+				A5E112912AF73E4D00C6E0C2 /* Paste Protection */,
 				A534263E2A7DCC5800EBB7A2 /* Settings */,
 			);
 			path = Features;
@@ -227,6 +234,16 @@
 			name = Frameworks;
 			sourceTree = "<group>";
 		};
+		A5E112912AF73E4D00C6E0C2 /* Paste Protection */ = {
+			isa = PBXGroup;
+			children = (
+				A5E112922AF73E6E00C6E0C2 /* PasteProtection.xib */,
+				A5E112942AF73E8A00C6E0C2 /* PasteProtectionController.swift */,
+				A5E112962AF7401B00C6E0C2 /* PasteProtectionView.swift */,
+			);
+			path = "Paste Protection";
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -289,6 +306,7 @@
 				A596309A2AEE1C6400D64628 /* Terminal.xib in Resources */,
 				A5A1F8852A489D6800D1E8BC /* terminfo in Resources */,
 				A5CDF1912AAF9A5800513312 /* ConfigurationErrors.xib in Resources */,
+				A5E112932AF73E6E00C6E0C2 /* PasteProtection.xib in Resources */,
 				A5B30539299BEAAB0047F10C /* Assets.xcassets in Resources */,
 				857F63812A5E64F200CA4815 /* MainMenu.xib in Resources */,
 			);
@@ -324,9 +342,11 @@
 				A55685E029A03A9F004303CE /* AppError.swift in Sources */,
 				A535B9DA299C569B0017E2E4 /* ErrorView.swift in Sources */,
 				A5CEAFFF29C2410700646FDA /* Backport.swift in Sources */,
+				A5E112952AF73E8A00C6E0C2 /* PasteProtectionController.swift in Sources */,
 				8503D7C72A549C66006CFF3D /* FullScreenHandler.swift in Sources */,
 				A596309E2AEE1D6C00D64628 /* TerminalView.swift in Sources */,
 				A5CEAFDE29B8058B00646FDA /* SplitView.Divider.swift in Sources */,
+				A5E112972AF7401B00C6E0C2 /* PasteProtectionView.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/macos/Sources/Features/Paste Protection/PasteProtection.xib b/macos/Sources/Features/Paste Protection/PasteProtection.xib
new file mode 100644
index 000000000..312a3da5a
--- /dev/null
+++ b/macos/Sources/Features/Paste Protection/PasteProtection.xib	
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="22155" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="22155"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="PasteProtectionController" customModule="Ghostty" customModuleProvider="target">
+            <connections>
+                <outlet property="window" destination="F0z-JX-Cv5" id="V20-69-5rG"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
+        <window title="Warning: Potentially Unsafe Paste" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" visibleAtLaunch="NO" animationBehavior="default" id="F0z-JX-Cv5">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <windowPositionMask key="initialPositionMask" leftStrut="YES" rightStrut="YES" topStrut="YES" bottomStrut="YES"/>
+            <rect key="contentRect" x="196" y="240" width="480" height="270"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="3008" height="1667"/>
+            <view key="contentView" wantsLayer="YES" id="se5-gp-TjO">
+                <rect key="frame" x="0.0" y="0.0" width="480" height="270"/>
+                <autoresizingMask key="autoresizingMask"/>
+            </view>
+            <point key="canvasLocation" x="-116" y="100"/>
+        </window>
+    </objects>
+</document>
diff --git a/macos/Sources/Features/Paste Protection/PasteProtectionController.swift b/macos/Sources/Features/Paste Protection/PasteProtectionController.swift
new file mode 100644
index 000000000..bad16bf06
--- /dev/null
+++ b/macos/Sources/Features/Paste Protection/PasteProtectionController.swift	
@@ -0,0 +1,15 @@
+import Foundation
+import Cocoa
+import SwiftUI
+import GhosttyKit
+
+class PasteProtectionController: NSWindowController {
+    override var windowNibName: NSNib.Name? { "PasteProtection" }
+    
+    //MARK: - NSWindowController
+    
+    override func windowDidLoad() {
+        guard let window = window else { return }
+        window.contentView = NSHostingView(rootView: PasteProtectionView())
+    }
+}
diff --git a/macos/Sources/Features/Paste Protection/PasteProtectionView.swift b/macos/Sources/Features/Paste Protection/PasteProtectionView.swift
new file mode 100644
index 000000000..61d084cbe
--- /dev/null
+++ b/macos/Sources/Features/Paste Protection/PasteProtectionView.swift	
@@ -0,0 +1,18 @@
+import SwiftUI
+
+struct PasteProtectionView: View {
+    var body: some View {
+        HStack {
+            Image("AppIconImage")
+                .resizable()
+                .scaledToFit()
+                .frame(width: 128, height: 128)
+            
+            VStack(alignment: .leading) {
+                Text("Oh, no. 😭").font(.title)
+                Text("Something went fatally wrong.\nCheck the logs and restart Ghostty.")
+            }
+        }
+        .padding()
+    }
+}
diff --git a/macos/Sources/Features/Terminal/TerminalController.swift b/macos/Sources/Features/Terminal/TerminalController.swift
index 66fe9c965..7aa4b7b26 100644
--- a/macos/Sources/Features/Terminal/TerminalController.swift
+++ b/macos/Sources/Features/Terminal/TerminalController.swift
@@ -115,6 +115,10 @@ class TerminalController: NSWindowController, NSWindowDelegate, TerminalViewDele
             viewModel: self,
             delegate: self
         ))
+        
+        // TODO: remove this, just for dev
+        let pp = PasteProtectionController()
+        window.beginSheet(pp.window!)
     }
     
     // Shows the "+" button in the tab bar, responds to that click.