Insurers doing business in New York State must tell a regulator there about efforts to prevent computer hacking, detailing the precautions taken and the personnel devoted to the task. Benjamin Lawsky, superintendent of the state Department of Financial Services, said in a letter to insurers Thursday that they must provide the information by April 27 and submit to examinations by the agency. About 160 life, health and property & casualty insurers are affected. "The department intends to schedule IT/cybersecurity examinations after conducting a comprehensive risk assessment of each institution," Lawsky wrote.