U.S. House of Representatives members who worry that China may have been responsible for attacks on their computers have provided little evidence to back up their claims, according to computer security experts…”It’s so very hard to conclude that something came from someplace if all you’re going from is an IP address,” said Marcus Sachs, director of the SANS Internet Storm Center, a volunteer-run effort that tracks emerging computer threats. “Those of us who have done this for a living, we know that you can’t prove that it was a Chinese person on the keyboard if you have a Chinese IP address,” he said. “Without making some of the evidence public … you leave everybody else guessing…”
