Do Cyberattacks on Iran Make Us Vulnerable? It is now clear that the United States was involved in cyberattacks that damaged Iran's nuclear enrichment facilities. But such actions may open the door to bolder attacks against the United States. A leading Russian cybersecurity expert, who discovered another virus afflicting computers in Iran, has called for an international treaty banning cyberweapons. By pursuing cyberattacks against foreign nations, is the United States protecting itself or risking far greater danger?