If you’re involved with embedded systems, ignoring security is not an option. The products you design and manufacture today will enter a hostile environment, crawling with all manner of cyber-thieves, industrial spies and hackers intent on attacking your devices—and the customers who use them. The first installment of this paper provided an overview of the security threats faced by the electronics community and their potential impact on a manufacturer’s profits. After a brief recap, this concluding installment will provide a more detailed look at some of the major threats and use cases, illustrating cost-effective countermeasures which can be tailored for nearly every application.