> For the complete documentation index, see [llms.txt](https://www.hardbreak.wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.hardbreak.wiki/hardware-hacking/interface-interaction.md).

# Interface Interaction

You could identify potential interfaces for UART/JTAG/SWD/SPI etc.? Great! In this chapter we discuss on how to verify potential debug interface candidates and how to use them to extract data or even the complete firmware from the target device.