I own some mice and keyboards for example my logitech G400 mouse and my razer deathstalker keyboard.
Both of those devices have as far as i know built in memories to save DPI settings macros so on and so forth.
Now i have read somewhere some time ago that at some german hacker meeting a guy managed to save a keylogger to the onboard memory of a razer deathstalker keyboard.
My questions are:
Is the memory built into my razer deathstalker keyboard not secured by a razer digital signature so that it only allows a razer signed driver to save changes to it? Same question goes for my g400 logitech mouse.
In case there is none protection whtasoever how could i overwrite the memory by myself? It's a shame that i don't find the original article i read.