Fix: Implement MFA security fix

src/components/auth/MFAStepUpModal.tsx

@@ -12,7 +12,11 @@ interface MFAStepUpModalProps {
 export function MFAStepUpModal({ open, factorId, onSuccess, onCancel }: MFAStepUpModalProps) {
   return (
     <Dialog open={open} onOpenChange={(isOpen) => !isOpen && onCancel()}>
-      <DialogContent className="sm:max-w-md" onInteractOutside={(e) => e.preventDefault()}>
+      <DialogContent 
+        className="sm:max-w-md" 
+        onInteractOutside={(e) => e.preventDefault()}
+        onEscapeKeyDown={(e) => e.preventDefault()}
+      >
         <DialogHeader>
           <div className="flex items-center gap-2 justify-center mb-2">
             <Shield className="h-6 w-6 text-primary" />