diff --git a/SafeExamBrowser.Client.UnitTests/ClientControllerTests.cs b/SafeExamBrowser.Client.UnitTests/ClientControllerTests.cs
index df732729..c2b3be65 100644
--- a/SafeExamBrowser.Client.UnitTests/ClientControllerTests.cs
+++ b/SafeExamBrowser.Client.UnitTests/ClientControllerTests.cs
@@ -49,6 +49,7 @@ namespace SafeExamBrowser.Client.UnitTests
 		private Settings settings;
 		private Mock<Action> shutdown;
 		private Mock<ITaskbar> taskbar;
+		private Mock<ITerminationActivator> terminationActivator;
 		private Mock<IText> text;
 		private Mock<IUserInterfaceFactory> uiFactory;
 		private Mock<IWindowMonitor> windowMonitor;
@@ -74,6 +75,7 @@ namespace SafeExamBrowser.Client.UnitTests
 			settings = new Settings();
 			shutdown = new Mock<Action>();
 			taskbar = new Mock<ITaskbar>();
+			terminationActivator = new Mock<ITerminationActivator>();
 			text = new Mock<IText>();
 			uiFactory = new Mock<IUserInterfaceFactory>();
 			windowMonitor = new Mock<IWindowMonitor>();
@@ -94,6 +96,7 @@ namespace SafeExamBrowser.Client.UnitTests
 				runtimeProxy.Object,
 				shutdown.Object,
 				taskbar.Object,
+				terminationActivator.Object,
 				text.Object,
 				uiFactory.Object,
 				windowMonitor.Object);
diff --git a/SafeExamBrowser.Client.UnitTests/Operations/ShellOperationTests.cs b/SafeExamBrowser.Client.UnitTests/Operations/ShellOperationTests.cs
index 21f73c01..c4eab709 100644
--- a/SafeExamBrowser.Client.UnitTests/Operations/ShellOperationTests.cs
+++ b/SafeExamBrowser.Client.UnitTests/Operations/ShellOperationTests.cs
@@ -17,6 +17,7 @@ using SafeExamBrowser.Contracts.Logging;
 using SafeExamBrowser.Contracts.SystemComponents;
 using SafeExamBrowser.Contracts.UserInterface;
 using SafeExamBrowser.Contracts.UserInterface.Shell;
+using SafeExamBrowser.Contracts.WindowsApi;
 
 namespace SafeExamBrowser.Client.UnitTests.Operations
 {
@@ -28,6 +29,7 @@ namespace SafeExamBrowser.Client.UnitTests.Operations
 		private ActionCenterSettings actionCenterSettings;
 		private Mock<ILogger> logger;
 		private TaskbarSettings taskbarSettings;
+		private Mock<ITerminationActivator> terminationActivator;
 		private Mock<INotificationInfo> aboutInfo;
 		private Mock<INotificationController> aboutController;
 		private Mock<INotificationInfo> logInfo;
@@ -59,6 +61,7 @@ namespace SafeExamBrowser.Client.UnitTests.Operations
 			systemInfo = new Mock<ISystemInfo>();
 			taskbar = new Mock<ITaskbar>();
 			taskbarSettings = new TaskbarSettings();
+			terminationActivator = new Mock<ITerminationActivator>();
 			text = new Mock<IText>();
 			uiFactory = new Mock<IUserInterfaceFactory>();
 
@@ -84,6 +87,7 @@ namespace SafeExamBrowser.Client.UnitTests.Operations
 				systemInfo.Object,
 				taskbar.Object,
 				taskbarSettings,
+				terminationActivator.Object,
 				text.Object,
 				uiFactory.Object);
 		}
diff --git a/SafeExamBrowser.Client/ClientController.cs b/SafeExamBrowser.Client/ClientController.cs
index 1322556b..288d5957 100644
--- a/SafeExamBrowser.Client/ClientController.cs
+++ b/SafeExamBrowser.Client/ClientController.cs
@@ -44,6 +44,7 @@ namespace SafeExamBrowser.Client
 		private Action shutdown;
 		private ISplashScreen splashScreen;
 		private ITaskbar taskbar;
+		private ITerminationActivator terminationActivator;
 		private IText text;
 		private IUserInterfaceFactory uiFactory;
 		private IWindowMonitor windowMonitor;
@@ -79,6 +80,7 @@ namespace SafeExamBrowser.Client
 			IRuntimeProxy runtime,
 			Action shutdown,
 			ITaskbar taskbar,
+			ITerminationActivator terminationActivator,
 			IText text,
 			IUserInterfaceFactory uiFactory,
 			IWindowMonitor windowMonitor)
@@ -94,6 +96,7 @@ namespace SafeExamBrowser.Client
 			this.runtime = runtime;
 			this.shutdown = shutdown;
 			this.taskbar = taskbar;
+			this.terminationActivator = terminationActivator;
 			this.text = text;
 			this.uiFactory = uiFactory;
 			this.windowMonitor = windowMonitor;
@@ -178,6 +181,7 @@ namespace SafeExamBrowser.Client
 			processMonitor.ExplorerStarted += ProcessMonitor_ExplorerStarted;
 			runtime.ConnectionLost += Runtime_ConnectionLost;
 			taskbar.QuitButtonClicked += Shell_QuitButtonClicked;
+			terminationActivator.Activated += TerminationActivator_Activated;
 			windowMonitor.WindowChanged += WindowMonitor_WindowChanged;
 		}
 
@@ -188,6 +192,7 @@ namespace SafeExamBrowser.Client
 			processMonitor.ExplorerStarted -= ProcessMonitor_ExplorerStarted;
 			runtime.ConnectionLost -= Runtime_ConnectionLost;
 			taskbar.QuitButtonClicked -= Shell_QuitButtonClicked;
+			terminationActivator.Activated -= TerminationActivator_Activated;
 			windowMonitor.WindowChanged -= WindowMonitor_WindowChanged;
 
 			if (Browser != null)
@@ -383,6 +388,35 @@ namespace SafeExamBrowser.Client
 		}
 
 		private void Shell_QuitButtonClicked(System.ComponentModel.CancelEventArgs args)
+		{
+			terminationActivator.Pause();
+			args.Cancel = !TryInitiateShutdown();
+			terminationActivator.Resume();
+		}
+
+		private void TerminationActivator_Activated()
+		{
+			terminationActivator.Pause();
+			TryInitiateShutdown();
+			terminationActivator.Resume();
+		}
+
+		private void WindowMonitor_WindowChanged(IntPtr window)
+		{
+			var allowed = processMonitor.BelongsToAllowedProcess(window);
+
+			if (!allowed)
+			{
+				var success = windowMonitor.Hide(window);
+
+				if (!success)
+				{
+					windowMonitor.Close(window);
+				}
+			}
+		}
+
+		private bool TryInitiateShutdown()
 		{
 			var hasQuitPassword = !String.IsNullOrEmpty(Settings.QuitPasswordHash);
 			var requestShutdown = false;
@@ -400,31 +434,18 @@ namespace SafeExamBrowser.Client
 			{
 				var communication = runtime.RequestShutdown();
 
-				if (!communication.Success)
+				if (communication.Success)
+				{
+					return true;
+				}
+				else
 				{
 					logger.Error("Failed to communicate shutdown request to the runtime!");
 					messageBox.Show(TextKey.MessageBox_QuitError, TextKey.MessageBox_QuitErrorTitle, icon: MessageBoxIcon.Error);
 				}
 			}
-			else
-			{
-				args.Cancel = true;
-			}
-		}
 
-		private void WindowMonitor_WindowChanged(IntPtr window)
-		{
-			var allowed = processMonitor.BelongsToAllowedProcess(window);
-
-			if (!allowed)
-			{
-				var success = windowMonitor.Hide(window);
-
-				if (!success)
-				{
-					windowMonitor.Close(window);
-				}
-			}
+			return false;
 		}
 
 		private bool TryConfirmShutdown()
diff --git a/SafeExamBrowser.Client/CompositionRoot.cs b/SafeExamBrowser.Client/CompositionRoot.cs
index f5760e95..68b94b36 100644
--- a/SafeExamBrowser.Client/CompositionRoot.cs
+++ b/SafeExamBrowser.Client/CompositionRoot.cs
@@ -71,6 +71,7 @@ namespace SafeExamBrowser.Client
 		private ISystemComponent<ISystemWirelessNetworkControl> wirelessNetwork;
 		private ISystemInfo systemInfo;
 		private ITaskbar taskbar;
+		private ITerminationActivator terminationActivator;
 		private IText text;
 		private ITextResource textResource;
 		private IUserInterfaceFactory uiFactory;
@@ -98,6 +99,7 @@ namespace SafeExamBrowser.Client
 			uiFactory = BuildUserInterfaceFactory();
 			runtimeProxy = new RuntimeProxy(runtimeHostUri, new ProxyObjectFactory(), new ModuleLogger(logger, nameof(RuntimeProxy)));
 			taskbar = BuildTaskbar();
+			terminationActivator = new TerminationActivator(new ModuleLogger(logger, nameof(TerminationActivator)));
 			windowMonitor = new WindowMonitor(new ModuleLogger(logger, nameof(WindowMonitor)), nativeMethods);
 			wirelessNetwork = new WirelessNetwork(new ModuleLogger(logger, nameof(WirelessNetwork)), text);
 
@@ -137,6 +139,7 @@ namespace SafeExamBrowser.Client
 				runtimeProxy,
 				shutdown,
 				taskbar,
+				terminationActivator,
 				text,
 				uiFactory,
 				windowMonitor);
@@ -279,6 +282,7 @@ namespace SafeExamBrowser.Client
 				systemInfo,
 				taskbar,
 				configuration.Settings.Taskbar,
+				terminationActivator,
 				text,
 				uiFactory);
 
diff --git a/SafeExamBrowser.Client/Operations/ShellOperation.cs b/SafeExamBrowser.Client/Operations/ShellOperation.cs
index ec10f2c9..8fa11e35 100644
--- a/SafeExamBrowser.Client/Operations/ShellOperation.cs
+++ b/SafeExamBrowser.Client/Operations/ShellOperation.cs
@@ -16,6 +16,7 @@ using SafeExamBrowser.Contracts.Logging;
 using SafeExamBrowser.Contracts.SystemComponents;
 using SafeExamBrowser.Contracts.UserInterface;
 using SafeExamBrowser.Contracts.UserInterface.Shell;
+using SafeExamBrowser.Contracts.WindowsApi;
 
 namespace SafeExamBrowser.Client.Operations
 {
@@ -35,6 +36,7 @@ namespace SafeExamBrowser.Client.Operations
 		private ISystemInfo systemInfo;
 		private ITaskbar taskbar;
 		private TaskbarSettings taskbarSettings;
+		private ITerminationActivator terminationActivator;
 		private IText text;
 		private IUserInterfaceFactory uiFactory;
 
@@ -56,6 +58,7 @@ namespace SafeExamBrowser.Client.Operations
 			ISystemInfo systemInfo,
 			ITaskbar taskbar,
 			TaskbarSettings taskbarSettings,
+			ITerminationActivator terminationActivator,
 			IText text,
 			IUserInterfaceFactory uiFactory)
 		{
@@ -71,6 +74,7 @@ namespace SafeExamBrowser.Client.Operations
 			this.powerSupply = powerSupply;
 			this.systemInfo = systemInfo;
 			this.taskbarSettings = taskbarSettings;
+			this.terminationActivator = terminationActivator;
 			this.text = text;
 			this.taskbar = taskbar;
 			this.uiFactory = uiFactory;
@@ -85,6 +89,7 @@ namespace SafeExamBrowser.Client.Operations
 			InitializeSystemComponents();
 			InitializeActionCenter();
 			InitializeTaskbar();
+			InitializeActivators();
 
 			return OperationResult.Success;
 		}
@@ -101,6 +106,11 @@ namespace SafeExamBrowser.Client.Operations
 			return OperationResult.Success;
 		}
 
+		private void InitializeActivators()
+		{
+			terminationActivator.Start();
+		}
+
 		private void InitializeActionCenter()
 		{
 			if (actionCenterSettings.EnableActionCenter)
@@ -270,6 +280,8 @@ namespace SafeExamBrowser.Client.Operations
 
 		private void TerminateActivators()
 		{
+			terminationActivator.Stop();
+
 			if (actionCenterSettings.EnableActionCenter)
 			{
 				foreach (var activator in activators)
diff --git a/SafeExamBrowser.Contracts/SafeExamBrowser.Contracts.csproj b/SafeExamBrowser.Contracts/SafeExamBrowser.Contracts.csproj
index 4cecb85b..b3dd3874 100644
--- a/SafeExamBrowser.Contracts/SafeExamBrowser.Contracts.csproj
+++ b/SafeExamBrowser.Contracts/SafeExamBrowser.Contracts.csproj
@@ -218,6 +218,7 @@
     <Compile Include="UserInterface\MessageBox\MessageBoxIcon.cs" />
     <Compile Include="WindowsApi\Events\ProcessTerminatedEventHandler.cs" />
     <Compile Include="WindowsApi\Events\SystemEventCallback.cs" />
+    <Compile Include="WindowsApi\Events\TerminationActivatorEventHandler.cs" />
     <Compile Include="WindowsApi\IBounds.cs" />
     <Compile Include="WindowsApi\IDesktop.cs" />
     <Compile Include="WindowsApi\IDesktopFactory.cs" />
@@ -225,6 +226,7 @@
     <Compile Include="WindowsApi\INativeMethods.cs" />
     <Compile Include="WindowsApi\IProcess.cs" />
     <Compile Include="WindowsApi\IProcessFactory.cs" />
+    <Compile Include="WindowsApi\ITerminationActivator.cs" />
   </ItemGroup>
   <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
diff --git a/SafeExamBrowser.Contracts/UserInterface/Shell/IActionCenterActivator.cs b/SafeExamBrowser.Contracts/UserInterface/Shell/IActionCenterActivator.cs
index e59153c6..ac59081d 100644
--- a/SafeExamBrowser.Contracts/UserInterface/Shell/IActionCenterActivator.cs
+++ b/SafeExamBrowser.Contracts/UserInterface/Shell/IActionCenterActivator.cs
@@ -18,17 +18,17 @@ namespace SafeExamBrowser.Contracts.UserInterface.Shell
 		/// <summary>
 		/// Fired when the action center should be made visible.
 		/// </summary>
-		event ActivatorEventHandler Activate;
+		event ActivatorEventHandler Activated;
 
 		/// <summary>
 		/// Fired when the action center should be made invisible.
 		/// </summary>
-		event ActivatorEventHandler Deactivate;
+		event ActivatorEventHandler Deactivated;
 
 		/// <summary>
 		/// Fired when the action center visibility should be toggled.
 		/// </summary>
-		event ActivatorEventHandler Toggle;
+		event ActivatorEventHandler Toggled;
 
 		/// <summary>
 		/// Starts monitoring user input events.
diff --git a/SafeExamBrowser.Contracts/WindowsApi/Events/TerminationActivatorEventHandler.cs b/SafeExamBrowser.Contracts/WindowsApi/Events/TerminationActivatorEventHandler.cs
new file mode 100644
index 00000000..d49e4f7f
--- /dev/null
+++ b/SafeExamBrowser.Contracts/WindowsApi/Events/TerminationActivatorEventHandler.cs
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+namespace SafeExamBrowser.Contracts.WindowsApi.Events
+{
+	/// <summary>
+	/// Event handler fired by the <see cref="ITerminationActivator"/> when the user would like to terminate the application.
+	/// </summary>
+	public delegate void TerminationActivatorEventHandler();
+}
diff --git a/SafeExamBrowser.Contracts/WindowsApi/ITerminationActivator.cs b/SafeExamBrowser.Contracts/WindowsApi/ITerminationActivator.cs
new file mode 100644
index 00000000..488f6936
--- /dev/null
+++ b/SafeExamBrowser.Contracts/WindowsApi/ITerminationActivator.cs
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using SafeExamBrowser.Contracts.WindowsApi.Events;
+
+namespace SafeExamBrowser.Contracts.WindowsApi
+{
+	/// <summary>
+	/// A module which observes user input and indicates when the user would like to terminate the application.
+	/// </summary>
+	public interface ITerminationActivator
+	{
+		/// <summary>
+		/// Fired when a termination request has been detected.
+		/// </summary>
+		event TerminationActivatorEventHandler Activated;
+
+		/// <summary>
+		/// Temporarily stops processing all user input.
+		/// </summary>
+		void Pause();
+
+		/// <summary>
+		/// Resumes processing user input.
+		/// </summary>
+		void Resume();
+
+		/// <summary>
+		/// Starts monitoring user input events.
+		/// </summary>
+		void Start();
+
+		/// <summary>
+		/// Stops monitoring user input events.
+		/// </summary>
+		void Stop();
+	}
+}
diff --git a/SafeExamBrowser.UserInterface.Desktop/ActionCenter.xaml.cs b/SafeExamBrowser.UserInterface.Desktop/ActionCenter.xaml.cs
index 8bd13c35..9f0fb949 100644
--- a/SafeExamBrowser.UserInterface.Desktop/ActionCenter.xaml.cs
+++ b/SafeExamBrowser.UserInterface.Desktop/ActionCenter.xaml.cs
@@ -82,9 +82,9 @@ namespace SafeExamBrowser.UserInterface.Desktop
 
 		public void Register(IActionCenterActivator activator)
 		{
-			activator.Activate += Activator_Activate;
-			activator.Deactivate += Activator_Deactivate;
-			activator.Toggle += Activator_Toggle;
+			activator.Activated += Activator_Activated;
+			activator.Deactivated += Activator_Deactivated;
+			activator.Toggled += Activator_Toggled;
 		}
 
 		public new void Show()
@@ -150,7 +150,7 @@ namespace SafeExamBrowser.UserInterface.Desktop
 			HideAnimated();
 		}
 
-		private void Activator_Activate()
+		private void Activator_Activated()
 		{
 			Dispatcher.InvokeAsync(() =>
 			{
@@ -161,7 +161,7 @@ namespace SafeExamBrowser.UserInterface.Desktop
 			});
 		}
 
-		private void Activator_Deactivate()
+		private void Activator_Deactivated()
 		{
 			Dispatcher.InvokeAsync(() =>
 			{
@@ -172,7 +172,7 @@ namespace SafeExamBrowser.UserInterface.Desktop
 			});
 		}
 
-		private void Activator_Toggle()
+		private void Activator_Toggled()
 		{
 			Dispatcher.InvokeAsync(() =>
 			{
diff --git a/SafeExamBrowser.UserInterface.Mobile/ActionCenter.xaml.cs b/SafeExamBrowser.UserInterface.Mobile/ActionCenter.xaml.cs
index df54e78a..43007b9d 100644
--- a/SafeExamBrowser.UserInterface.Mobile/ActionCenter.xaml.cs
+++ b/SafeExamBrowser.UserInterface.Mobile/ActionCenter.xaml.cs
@@ -82,9 +82,9 @@ namespace SafeExamBrowser.UserInterface.Mobile
 
 		public void Register(IActionCenterActivator activator)
 		{
-			activator.Activate += Activator_Activate;
-			activator.Deactivate += Activator_Deactivate;
-			activator.Toggle += Activator_Toggle;
+			activator.Activated += Activator_Activated;
+			activator.Deactivated += Activator_Deactivated;
+			activator.Toggled += Activator_Toggled;
 		}
 
 		public new void Show()
@@ -150,7 +150,7 @@ namespace SafeExamBrowser.UserInterface.Mobile
 			HideAnimated();
 		}
 
-		private void Activator_Activate()
+		private void Activator_Activated()
 		{
 			Dispatcher.InvokeAsync(() =>
 			{
@@ -161,7 +161,7 @@ namespace SafeExamBrowser.UserInterface.Mobile
 			});
 		}
 
-		private void Activator_Deactivate()
+		private void Activator_Deactivated()
 		{
 			Dispatcher.InvokeAsync(() =>
 			{
@@ -172,7 +172,7 @@ namespace SafeExamBrowser.UserInterface.Mobile
 			});
 		}
 
-		private void Activator_Toggle()
+		private void Activator_Toggled()
 		{
 			Dispatcher.InvokeAsync(() =>
 			{
diff --git a/SafeExamBrowser.WindowsApi/Constants/VirtualKeyCode.cs b/SafeExamBrowser.WindowsApi/Constants/VirtualKeyCode.cs
index 14adb28d..8a1fc29d 100644
--- a/SafeExamBrowser.WindowsApi/Constants/VirtualKeyCode.cs
+++ b/SafeExamBrowser.WindowsApi/Constants/VirtualKeyCode.cs
@@ -14,6 +14,7 @@ namespace SafeExamBrowser.WindowsApi.Constants
 	internal enum VirtualKeyCode
 	{
 		A = 0x41,
+		Q = 0x51,
 		Delete = 0x2E,
 		LeftAlt = 0xA4,
 		LeftControl = 0xA2,
diff --git a/SafeExamBrowser.WindowsApi/Monitoring/KeyboardHook.cs b/SafeExamBrowser.WindowsApi/Hooks/KeyboardHook.cs
similarity index 98%
rename from SafeExamBrowser.WindowsApi/Monitoring/KeyboardHook.cs
rename to SafeExamBrowser.WindowsApi/Hooks/KeyboardHook.cs
index 40c34a69..77335ab8 100644
--- a/SafeExamBrowser.WindowsApi/Monitoring/KeyboardHook.cs
+++ b/SafeExamBrowser.WindowsApi/Hooks/KeyboardHook.cs
@@ -13,7 +13,7 @@ using SafeExamBrowser.WindowsApi.Constants;
 using SafeExamBrowser.WindowsApi.Delegates;
 using SafeExamBrowser.WindowsApi.Types;
 
-namespace SafeExamBrowser.WindowsApi.Monitoring
+namespace SafeExamBrowser.WindowsApi.Hooks
 {
 	internal class KeyboardHook
 	{
diff --git a/SafeExamBrowser.WindowsApi/Monitoring/MouseHook.cs b/SafeExamBrowser.WindowsApi/Hooks/MouseHook.cs
similarity index 98%
rename from SafeExamBrowser.WindowsApi/Monitoring/MouseHook.cs
rename to SafeExamBrowser.WindowsApi/Hooks/MouseHook.cs
index f6f459e1..2ad1080d 100644
--- a/SafeExamBrowser.WindowsApi/Monitoring/MouseHook.cs
+++ b/SafeExamBrowser.WindowsApi/Hooks/MouseHook.cs
@@ -13,7 +13,7 @@ using SafeExamBrowser.WindowsApi.Constants;
 using SafeExamBrowser.WindowsApi.Delegates;
 using SafeExamBrowser.WindowsApi.Types;
 
-namespace SafeExamBrowser.WindowsApi.Monitoring
+namespace SafeExamBrowser.WindowsApi.Hooks
 {
 	internal class MouseHook
 	{
diff --git a/SafeExamBrowser.WindowsApi/Monitoring/SystemHook.cs b/SafeExamBrowser.WindowsApi/Hooks/SystemHook.cs
similarity index 97%
rename from SafeExamBrowser.WindowsApi/Monitoring/SystemHook.cs
rename to SafeExamBrowser.WindowsApi/Hooks/SystemHook.cs
index 26460a47..ef26d893 100644
--- a/SafeExamBrowser.WindowsApi/Monitoring/SystemHook.cs
+++ b/SafeExamBrowser.WindowsApi/Hooks/SystemHook.cs
@@ -12,7 +12,7 @@ using SafeExamBrowser.Contracts.WindowsApi.Events;
 using SafeExamBrowser.WindowsApi.Constants;
 using SafeExamBrowser.WindowsApi.Delegates;
 
-namespace SafeExamBrowser.WindowsApi.Monitoring
+namespace SafeExamBrowser.WindowsApi.Hooks
 {
 	internal class SystemHook
 	{
diff --git a/SafeExamBrowser.WindowsApi/KeyboardActivator.cs b/SafeExamBrowser.WindowsApi/KeyboardActivator.cs
index afbd748c..d8d1b15d 100644
--- a/SafeExamBrowser.WindowsApi/KeyboardActivator.cs
+++ b/SafeExamBrowser.WindowsApi/KeyboardActivator.cs
@@ -25,9 +25,9 @@ namespace SafeExamBrowser.WindowsApi
 		private HookDelegate hookDelegate;
 		private ILogger logger;
 
-		public event ActivatorEventHandler Activate { add { } remove { } }
-		public event ActivatorEventHandler Deactivate { add { } remove { } }
-		public event ActivatorEventHandler Toggle;
+		public event ActivatorEventHandler Activated { add { } remove { } }
+		public event ActivatorEventHandler Deactivated { add { } remove { } }
+		public event ActivatorEventHandler Toggled;
 
 		public KeyboardActivator(ILogger logger)
 		{
@@ -93,7 +93,7 @@ namespace SafeExamBrowser.WindowsApi
 				if (A && LeftWindows && changed)
 				{
 					logger.Debug("Detected toggle sequence for action center.");
-					Toggle?.Invoke();
+					Toggled?.Invoke();
 
 					return (IntPtr) 1;
 				}
diff --git a/SafeExamBrowser.WindowsApi/NativeMethods.cs b/SafeExamBrowser.WindowsApi/NativeMethods.cs
index eacdb8ac..dfbbd85f 100644
--- a/SafeExamBrowser.WindowsApi/NativeMethods.cs
+++ b/SafeExamBrowser.WindowsApi/NativeMethods.cs
@@ -18,7 +18,7 @@ using SafeExamBrowser.Contracts.Monitoring;
 using SafeExamBrowser.Contracts.WindowsApi;
 using SafeExamBrowser.Contracts.WindowsApi.Events;
 using SafeExamBrowser.WindowsApi.Constants;
-using SafeExamBrowser.WindowsApi.Monitoring;
+using SafeExamBrowser.WindowsApi.Hooks;
 using SafeExamBrowser.WindowsApi.Types;
 
 namespace SafeExamBrowser.WindowsApi
diff --git a/SafeExamBrowser.WindowsApi/SafeExamBrowser.WindowsApi.csproj b/SafeExamBrowser.WindowsApi/SafeExamBrowser.WindowsApi.csproj
index d848fc84..affd47c7 100644
--- a/SafeExamBrowser.WindowsApi/SafeExamBrowser.WindowsApi.csproj
+++ b/SafeExamBrowser.WindowsApi/SafeExamBrowser.WindowsApi.csproj
@@ -64,8 +64,9 @@
     <Compile Include="DesktopFactory.cs" />
     <Compile Include="ExplorerShell.cs" />
     <Compile Include="KeyboardActivator.cs" />
-    <Compile Include="Monitoring\MouseHook.cs" />
-    <Compile Include="Monitoring\SystemHook.cs" />
+    <Compile Include="Hooks\MouseHook.cs" />
+    <Compile Include="Hooks\SystemHook.cs" />
+    <Compile Include="TerminationActivator.cs" />
     <Compile Include="Process.cs" />
     <Compile Include="ProcessFactory.cs" />
     <Compile Include="Constants\AccessMask.cs" />
@@ -77,7 +78,7 @@
     <Compile Include="Constants\ShowWindowCommand.cs" />
     <Compile Include="Constants\SystemCommand.cs" />
     <Compile Include="Kernel32.cs" />
-    <Compile Include="Monitoring\KeyboardHook.cs" />
+    <Compile Include="Hooks\KeyboardHook.cs" />
     <Compile Include="NativeMethods.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Constants\SPI.cs" />
diff --git a/SafeExamBrowser.WindowsApi/TerminationActivator.cs b/SafeExamBrowser.WindowsApi/TerminationActivator.cs
new file mode 100644
index 00000000..60347423
--- /dev/null
+++ b/SafeExamBrowser.WindowsApi/TerminationActivator.cs
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using System;
+using System.Runtime.InteropServices;
+using System.Threading;
+using SafeExamBrowser.Contracts.Logging;
+using SafeExamBrowser.Contracts.WindowsApi;
+using SafeExamBrowser.Contracts.WindowsApi.Events;
+using SafeExamBrowser.WindowsApi.Constants;
+using SafeExamBrowser.WindowsApi.Delegates;
+using SafeExamBrowser.WindowsApi.Types;
+
+namespace SafeExamBrowser.WindowsApi
+{
+	public class TerminationActivator : ITerminationActivator
+	{
+		private bool Q, LeftCtrl, RightCtrl, paused;
+		private IntPtr handle;
+		private HookDelegate hookDelegate;
+		private ILogger logger;
+
+		public event TerminationActivatorEventHandler Activated;
+
+		public TerminationActivator(ILogger logger)
+		{
+			this.logger = logger;
+		}
+
+		public void Pause()
+		{
+			paused = true;
+		}
+
+		public void Resume()
+		{
+			Q = false;
+			LeftCtrl = false;
+			RightCtrl = false;
+			paused = false;
+		}
+
+		public void Start()
+		{
+			var hookReadyEvent = new AutoResetEvent(false);
+			var hookThread = new Thread(() =>
+			{
+				var sleepEvent = new AutoResetEvent(false);
+				var process = System.Diagnostics.Process.GetCurrentProcess();
+				var module = process.MainModule;
+				var moduleHandle = Kernel32.GetModuleHandle(module.ModuleName);
+
+				// IMPORTANT:
+				// Ensures that the hook delegate does not get garbage collected prematurely, as it will be passed to unmanaged code.
+				// Not doing so will result in a <c>CallbackOnCollectedDelegate</c> error and subsequent application crash!
+				hookDelegate = new HookDelegate(LowLevelKeyboardProc);
+
+				handle = User32.SetWindowsHookEx(HookType.WH_KEYBOARD_LL, hookDelegate, moduleHandle, 0);
+				hookReadyEvent.Set();
+
+				while (true)
+				{
+					sleepEvent.WaitOne();
+				}
+			});
+
+			hookThread.SetApartmentState(ApartmentState.STA);
+			hookThread.IsBackground = true;
+			hookThread.Start();
+
+			hookReadyEvent.WaitOne();
+		}
+
+		public void Stop()
+		{
+			User32.UnhookWindowsHookEx(handle);
+		}
+
+		private IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam)
+		{
+			if (nCode >= 0 && !paused)
+			{
+				var changed = false;
+				var keyData = (KBDLLHOOKSTRUCT) Marshal.PtrToStructure(lParam, typeof(KBDLLHOOKSTRUCT));
+				var pressed = IsPressed(wParam.ToInt32());
+
+				switch (keyData.KeyCode)
+				{
+					case (uint) VirtualKeyCode.Q:
+						changed = Q != pressed;
+						Q = pressed;
+						break;
+					case (uint) VirtualKeyCode.LeftControl:
+						changed = LeftCtrl != pressed;
+						LeftCtrl = pressed;
+						break;
+					case (uint) VirtualKeyCode.RightControl:
+						changed = RightCtrl != pressed;
+						RightCtrl = pressed;
+						break;
+				}
+
+				if (Q && (LeftCtrl || RightCtrl) && changed)
+				{
+					logger.Debug("Detected termination sequence.");
+					Activated?.Invoke();
+
+					return (IntPtr) 1;
+				}
+			}
+
+			return User32.CallNextHookEx(handle, nCode, wParam, lParam);
+		}
+
+		private bool IsPressed(int wParam)
+		{
+			return wParam == Constant.WM_KEYDOWN || wParam == Constant.WM_SYSKEYDOWN;
+		}
+	}
+}
diff --git a/SafeExamBrowser.WindowsApi/TouchActivator.cs b/SafeExamBrowser.WindowsApi/TouchActivator.cs
index 83671305..8ec2c7d1 100644
--- a/SafeExamBrowser.WindowsApi/TouchActivator.cs
+++ b/SafeExamBrowser.WindowsApi/TouchActivator.cs
@@ -26,9 +26,9 @@ namespace SafeExamBrowser.WindowsApi
 		private bool isDown;
 		private ILogger logger;
 
-		public event ActivatorEventHandler Activate;
-		public event ActivatorEventHandler Deactivate { add { } remove { } }
-		public event ActivatorEventHandler Toggle { add { } remove { } }
+		public event ActivatorEventHandler Activated;
+		public event ActivatorEventHandler Deactivated { add { } remove { } }
+		public event ActivatorEventHandler Toggled { add { } remove { } }
 
 		public TouchActivator(ILogger logger)
 		{
@@ -109,7 +109,7 @@ namespace SafeExamBrowser.WindowsApi
 			if (isDown && hasMoved)
 			{
 				logger.Debug("Detected activation gesture for action center.");
-				Activate?.Invoke();
+				Activated?.Invoke();
 			}
 		}