diff --git a/presentation/src/main/java/org/cryptomator/presentation/presenter/LicenseCheckPresenter.kt b/presentation/src/main/java/org/cryptomator/presentation/presenter/LicenseCheckPresenter.kt
index 7a9a665f..6e69494b 100644
--- a/presentation/src/main/java/org/cryptomator/presentation/presenter/LicenseCheckPresenter.kt
+++ b/presentation/src/main/java/org/cryptomator/presentation/presenter/LicenseCheckPresenter.kt
@@ -6,13 +6,14 @@ import org.cryptomator.domain.usecases.LicenseCheck
 import org.cryptomator.domain.usecases.NoOpResultHandler
 import org.cryptomator.presentation.exception.ExceptionHandlers
 import org.cryptomator.presentation.ui.activity.view.UpdateLicenseView
+import org.cryptomator.presentation.ui.dialog.AppIsObscuredInfoDialog
 import org.cryptomator.util.SharedPreferencesHandler
 import javax.inject.Inject
 import timber.log.Timber
 
 class LicenseCheckPresenter @Inject internal constructor(
 	exceptionHandlers: ExceptionHandlers,  //
-	private val doLicenseCheckUsecase: DoLicenseCheckUseCase,  //
+	private val doLicenseCheckUseCase: DoLicenseCheckUseCase,  //
 	private val sharedPreferencesHandler: SharedPreferencesHandler
 ) : Presenter<UpdateLicenseView>(exceptionHandlers) {
 
@@ -20,18 +21,22 @@ class LicenseCheckPresenter @Inject internal constructor(
 		data?.let {
 			val license = it.fragment ?: it.lastPathSegment ?: ""
 			view?.showOrUpdateLicenseDialog(license)
-			doLicenseCheckUsecase
+			doLicenseCheckUseCase
 				.withLicense(license)
 				.run(CheckLicenseStatusSubscriber())
 		}
 	}
 
 	fun validateDialogAware(license: String?) {
-		doLicenseCheckUsecase
+		doLicenseCheckUseCase
 			.withLicense(license)
 			.run(CheckLicenseStatusSubscriber())
 	}
 
+	fun onFilteredTouchEventForSecurity() {
+		view?.showDialog(AppIsObscuredInfoDialog.newInstance())
+	}
+
 	private inner class CheckLicenseStatusSubscriber : NoOpResultHandler<LicenseCheck>() {
 
 		override fun onSuccess(licenseCheck: LicenseCheck) {
@@ -49,6 +54,6 @@ class LicenseCheckPresenter @Inject internal constructor(
 	}
 
 	init {
-		unsubscribeOnDestroy(doLicenseCheckUsecase)
+		unsubscribeOnDestroy(doLicenseCheckUseCase)
 	}
 }
diff --git a/presentation/src/main/java/org/cryptomator/presentation/ui/activity/LicenseCheckActivity.kt b/presentation/src/main/java/org/cryptomator/presentation/ui/activity/LicenseCheckActivity.kt
index 2753f76f..f7602a64 100644
--- a/presentation/src/main/java/org/cryptomator/presentation/ui/activity/LicenseCheckActivity.kt
+++ b/presentation/src/main/java/org/cryptomator/presentation/ui/activity/LicenseCheckActivity.kt
@@ -10,11 +10,13 @@ import org.cryptomator.presentation.presenter.LicenseCheckPresenter
 import org.cryptomator.presentation.ui.activity.view.UpdateLicenseView
 import org.cryptomator.presentation.ui.dialog.LicenseConfirmationDialog
 import org.cryptomator.presentation.ui.dialog.UpdateLicenseDialog
+import org.cryptomator.presentation.ui.layout.ObscuredAwareCoordinatorLayout
 import javax.inject.Inject
 import kotlin.system.exitProcess
+import kotlinx.android.synthetic.main.activity_layout_obscure_aware.activityRootView
 import kotlinx.android.synthetic.main.toolbar_layout.toolbar
 
-@Activity
+@Activity(layout = R.layout.activity_layout_obscure_aware)
 class LicenseCheckActivity : BaseActivity(), UpdateLicenseDialog.Callback, LicenseConfirmationDialog.Callback, UpdateLicenseView {
 
 	@Inject
@@ -23,11 +25,19 @@ class LicenseCheckActivity : BaseActivity(), UpdateLicenseDialog.Callback, Licen
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
 
-		setupToolbar()
+		activityRootView.setOnFilteredTouchEventForSecurityListener(object : ObscuredAwareCoordinatorLayout.Listener {
+			override fun onFilteredTouchEventForSecurity() {
+				licenseCheckPresenter.onFilteredTouchEventForSecurity()
+			}
+		})
 
 		validate(intent)
 	}
 
+	override fun setupView() {
+		setupToolbar()
+	}
+
 	override fun checkLicenseClicked(license: String?) {
 		licenseCheckPresenter.validateDialogAware(license)
 	}
@@ -51,6 +61,11 @@ class LicenseCheckActivity : BaseActivity(), UpdateLicenseDialog.Callback, Licen
 		exitProcess(0)
 	}
 
+	override fun appObscuredClosingEnterLicenseDialog() {
+		closeDialog()
+		licenseCheckPresenter.onFilteredTouchEventForSecurity()
+	}
+
 	private fun setupToolbar() {
 		toolbar.title = getString(R.string.app_name).uppercase()
 		setSupportActionBar(toolbar)
diff --git a/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/BaseDialog.kt b/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/BaseDialog.kt
index cbab7944..2f26a5d5 100644
--- a/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/BaseDialog.kt
+++ b/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/BaseDialog.kt
@@ -82,9 +82,7 @@ abstract class BaseDialog<Callback> : DialogFragment() {
 		get() = requireContext().resources.configuration.orientation == Configuration.ORIENTATION_LANDSCAPE
 
 	fun onErrorResponse(view: View?) {
-		if (view != null) {
-			view.isFocusableInTouchMode = true
-		}
+		view?.let { it.isFocusableInTouchMode = true }
 		allowClosingDialog(true)
 		enableButtons(true)
 	}
diff --git a/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/LicenseConfirmationDialog.kt b/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/LicenseConfirmationDialog.kt
index 9c6f908a..031c59eb 100644
--- a/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/LicenseConfirmationDialog.kt
+++ b/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/LicenseConfirmationDialog.kt
@@ -16,10 +16,10 @@ class LicenseConfirmationDialog : BaseDialog<LicenseConfirmationDialog.Callback>
 	}
 
 	public override fun setupDialog(builder: AlertDialog.Builder): android.app.Dialog {
-		builder //
+		return builder //
 			.setTitle(getString(R.string.dialog_license_confirmation_title)) //
-			.setNeutralButton(getText(R.string.dialog_license_confirmation_ok_btn)) { _: DialogInterface, _: Int -> callback?.licenseConfirmationClicked() }
-		return builder.create()
+			.setNeutralButton(getText(R.string.dialog_license_confirmation_ok_btn)) { _: DialogInterface, _: Int -> callback?.licenseConfirmationClicked() } //
+			.create()
 	}
 
 	public override fun setupView() {
diff --git a/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/UpdateLicenseDialog.kt b/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/UpdateLicenseDialog.kt
index fb4955f5..d82c085a 100644
--- a/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/UpdateLicenseDialog.kt
+++ b/presentation/src/main/java/org/cryptomator/presentation/ui/dialog/UpdateLicenseDialog.kt
@@ -7,6 +7,9 @@ import android.widget.Button
 import androidx.appcompat.app.AlertDialog
 import org.cryptomator.generator.Dialog
 import org.cryptomator.presentation.R
+import org.cryptomator.presentation.ui.layout.ObscuredAwareDialogCoordinatorLayout
+import org.cryptomator.util.SharedPreferencesHandler
+import kotlinx.android.synthetic.main.dialog_enter_license.dssialogRootView
 import kotlinx.android.synthetic.main.dialog_enter_license.et_license
 
 @Dialog(R.layout.dialog_enter_license)
@@ -19,6 +22,7 @@ class UpdateLicenseDialog : BaseProgressErrorDialog<UpdateLicenseDialog.Callback
 
 		fun checkLicenseClicked(license: String?)
 		fun onCheckLicenseCanceled()
+		fun appObscuredClosingEnterLicenseDialog()
 	}
 
 	override fun onStart() {
@@ -35,6 +39,15 @@ class UpdateLicenseDialog : BaseProgressErrorDialog<UpdateLicenseDialog.Callback
 				et_license.nextFocusForwardId = button.id
 			}
 		}
+
+		/* need to manually handle this in case of dialogs as otherwise the onFilterTouchEventForSecurity method of the ViewGroup
+		isn't called when filterTouchesWhenObscured is set to true in the BaseDialog and in contrast to if set in an Activity */
+		dialog?.window?.decorView?.filterTouchesWhenObscured = false
+		dssialogRootView.setOnFilteredTouchEventForSecurityListener(object : ObscuredAwareDialogCoordinatorLayout.Listener {
+			override fun onFilteredTouchEventForSecurity() {
+				callback?.appObscuredClosingEnterLicenseDialog()
+			}
+		}, SharedPreferencesHandler(requireContext()).disableAppWhenObscured())
 	}
 
 	public override fun setupDialog(builder: AlertDialog.Builder): android.app.Dialog {
@@ -47,9 +60,7 @@ class UpdateLicenseDialog : BaseProgressErrorDialog<UpdateLicenseDialog.Callback
 
 	public override fun setupView() {
 		val license = requireArguments().getSerializable(LICENSE_ARG) as String?
-		if (license != null) {
-			et_license.setText(license)
-		}
+		license?.let { et_license.setText(it) }
 		et_license.requestFocus()
 		registerOnEditorDoneActionAndPerformButtonClick(et_license) { checkLicenseButton }
 	}
diff --git a/presentation/src/main/java/org/cryptomator/presentation/ui/layout/ObscuredAwareDialogCoordinatorLayout.kt b/presentation/src/main/java/org/cryptomator/presentation/ui/layout/ObscuredAwareDialogCoordinatorLayout.kt
new file mode 100644
index 00000000..b133456d
--- /dev/null
+++ b/presentation/src/main/java/org/cryptomator/presentation/ui/layout/ObscuredAwareDialogCoordinatorLayout.kt
@@ -0,0 +1,38 @@
+package org.cryptomator.presentation.ui.layout
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.MotionEvent
+import androidx.coordinatorlayout.widget.CoordinatorLayout
+
+class ObscuredAwareDialogCoordinatorLayout : CoordinatorLayout {
+
+	private var listener: Listener? = null
+
+	private var active: Boolean = true
+
+	constructor(context: Context) : super(context)
+
+	constructor(context: Context, attrs: AttributeSet?) : super(context, attrs)
+
+	constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
+
+	fun setOnFilteredTouchEventForSecurityListener(listener: Listener, active: Boolean) {
+		this.listener = listener
+		this.active = active
+	}
+
+	override fun onFilterTouchEventForSecurity(event: MotionEvent): Boolean {
+		return if (active and ((event.flags and MotionEvent.FLAG_WINDOW_IS_OBSCURED) == MotionEvent.FLAG_WINDOW_IS_OBSCURED)) {
+			listener?.onFilteredTouchEventForSecurity()
+			false
+		} else {
+			true
+		}
+	}
+
+	interface Listener {
+
+		fun onFilteredTouchEventForSecurity()
+	}
+}
diff --git a/presentation/src/main/res/layout/dialog_enter_license.xml b/presentation/src/main/res/layout/dialog_enter_license.xml
index cfa64a16..e9feb5d2 100644
--- a/presentation/src/main/res/layout/dialog_enter_license.xml
+++ b/presentation/src/main/res/layout/dialog_enter_license.xml
@@ -1,51 +1,57 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.core.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+<org.cryptomator.presentation.ui.layout.ObscuredAwareDialogCoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+	android:id="@+id/dssialogRootView"
 	android:layout_width="match_parent"
 	android:layout_height="match_parent">
 
-	<RelativeLayout
+	<androidx.core.widget.NestedScrollView
 		android:layout_width="match_parent"
-		android:layout_height="match_parent"
-		android:padding="@dimen/activity_vertical_margin">
+		android:layout_height="match_parent">
 
-		<TextView
-			android:id="@+id/tv_message"
+		<RelativeLayout
 			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:layout_marginBottom="5dp"
-			android:text="@string/dialog_enter_license_content" />
+			android:layout_height="match_parent"
+			android:padding="@dimen/activity_vertical_margin">
 
-		<LinearLayout
-			android:id="@+id/ll_folder"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:layout_below="@+id/tv_message"
-			android:orientation="horizontal">
-
-			<ImageView
-				android:layout_width="40dp"
-				android:layout_height="40dp"
-				android:src="@drawable/ic_license_key" />
-
-			<com.google.android.material.textfield.TextInputEditText
-				android:id="@+id/et_license"
+			<TextView
+				android:id="@+id/tv_message"
 				android:layout_width="match_parent"
 				android:layout_height="wrap_content"
-				android:imeOptions="actionDone|flagNoPersonalizedLearning"
-				android:inputType="text" />
-		</LinearLayout>
+				android:layout_marginBottom="5dp"
+				android:text="@string/dialog_enter_license_content" />
 
-		<include
-			layout="@layout/view_dialog_progress"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:layout_below="@+id/til_password" />
+			<LinearLayout
+				android:id="@+id/ll_license"
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:layout_below="@+id/tv_message"
+				android:orientation="horizontal">
 
-		<include
-			layout="@layout/view_dialog_error"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:layout_below="@+id/ll_folder" />
+				<ImageView
+					android:layout_width="40dp"
+					android:layout_height="40dp"
+					android:src="@drawable/ic_license_key" />
 
-	</RelativeLayout>
-</androidx.core.widget.NestedScrollView>
+				<com.google.android.material.textfield.TextInputEditText
+					android:id="@+id/et_license"
+					android:layout_width="match_parent"
+					android:layout_height="wrap_content"
+					android:imeOptions="actionDone|flagNoPersonalizedLearning"
+					android:inputType="text" />
+			</LinearLayout>
+
+			<include
+				layout="@layout/view_dialog_progress"
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:layout_below="@+id/til_password" />
+
+			<include
+				layout="@layout/view_dialog_error"
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:layout_below="@+id/ll_license" />
+
+		</RelativeLayout>
+	</androidx.core.widget.NestedScrollView>
+</org.cryptomator.presentation.ui.layout.ObscuredAwareDialogCoordinatorLayout>