As many as 81 percent of hiring managers have policies in place that allow employees to work remotely, according to a study performed by Yoh, a talent and outsourcing services provider. And the results of a study released by study released by Cisco and Insight Express, an independent surveyor, which polled 1,000 remote workers in 10 countries, found that teleworkers frequently hijack neighbors' wireless networks, share computers with non-employees, and open e-mail from unknown sources.