A law firm did not violate copyright and computer anti-hacking laws when it used a Web archive search tool to recover old Web pages of its client’s adversary, says a federal judge.

Although the archived pages were supposed to be shielded from public view, the protections failed and lawyers at Harding Earley Follmer & Frailey in Valley Forge, Pa., did not hack their way in, Eastern District of Pennsylvania Judge Robert Kelly Jr. ruled last week on summary judgment.