If a site weren't to cooperate after a round of warnings, it might face penalties including DNS and IP blocking, domain name seizures and even financial repercussions that involve having their accounts with "payment intermediaries" (think PayPal) suspended.
Though the information the search engine provides on the cameras themselves is typically little more than an IP address and a camera name or model number, Google still provides those who know how to ask with extensive lists of IP cameras and Web-enabled surveillance systems throughout the world.