Communication security technologies, like Transport Layer Security (TLS), are readily available for developers to use to protect their IoT systems. Still, developers are reluctant to use state-of-the-art security technologies due to the impact on performance, code size and RAM, and energy. What is the impact of encryption algorithms, hash functions, and public key cryptosystems on a specific microcontroller? Peter Torelli and Hannes Tschofenig introduce a new security benchmark developed by the benchmarking organization EEMBC that allows silicon manufacturers and developers to analyze and select the appropriate microcontroller.