Which of these Computer Crime (ID theft, Hacking, Cyberstalking, Fraud, Viruses, DDoS attacks, Cyberterrorism) has the most impact?

The text discusses several types of Computer Crime (ID theft, Hacking, Cyberstalking, Fraud, Viruses, DDoS attacks, Cyberterrorism). Which of these do you think has the most impact? Which would you least like to be the victim of, and why?