<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjQtMDgvMDE5MTllYWYtMmEyZi03ZDIwLTkzZTQtMzE2M2ZjMGUyMTIw.jpg"></p><p>The biggest threat posed by quantum computers may be impossible to defend against.</p>