Attacks against embedded systems cover a wide range of surfaces. Some of them, such as power analysis and fault injection, are low-level attacks that depend on the construction of the microcontroller running your firmware. The release of open-source RISC-V microcontroller cores allows you to investigate how changes in the microcontroller core impacts these attacks in a way that using off-the-shelf microcontrollers never allowed before. This talk will demonstrate how power analysis & fault injection works, and then demonstrate how you can setup different types of RISC-V cores on a FPGA platform to perform these sorts of attacks.