IBM on Tuesday launched LinuxOne Emperor II, the second generation of its open source mainframe computer system. The new model has a layer of security and privacy not seen in a Linux-based platform before, the company said. "We saw in our success stories for Emperor that security was a recurring theme attracting new customers to the platform," noted Mark Figley, director of LinuxOne Offerings at IBM. "Later, our experience with blockchain ... reinforced that lesson for us," he said.