Ernst & Young survey shows 41 percent of mining companies are exposed to cyber-attacks. The metals industry is becoming more dependent on Internet-connected systems to reduce costs and modernize its systems. The operations systems are becoming inherently less secure, as many old systems were not developed with security in mind, the report concluded. Security experts have been warning for several years that hackers will increasingly target industrial systems connected to the Internet if security isn`t taken seriously, according to experts.”]