diff --git a/greeter/greeterapp.cpp b/greeter/greeterapp.cpp
--- a/greeter/greeterapp.cpp
+++ b/greeter/greeterapp.cpp
@@ -550,10 +550,20 @@
     }
 
     if (event->type() == QEvent::KeyPress) { // react if saver is visible
+        //if paste key is pressed, supress to avoid data leak as
+        //we are unable to reliably clear the clipboard
+        QKeyEvent *ke = static_cast<QKeyEvent *>(event);
+        if (ke->matches(QKeySequence::Paste)) {
+            return true;
+        }
+
         shareEvent(event, qobject_cast<KQuickAddons::QuickViewSharedEngine*>(obj));
         return false; // we don't care
     } else if (event->type() == QEvent::KeyRelease) { // conditionally reshow the saver
         QKeyEvent *ke = static_cast<QKeyEvent *>(event);
+        if (ke->matches(QKeySequence::Paste)) {
+            return true;
+        }
         if (ke->key() != Qt::Key_Escape) {
             shareEvent(event, qobject_cast<KQuickAddons::QuickViewSharedEngine*>(obj));
             return false; // irrelevant