[azernik]

Another good example that I have experience with - closed firmware blobs in everyone's wifi chipsets and cell phone basebands. Early-standard ARM processors are cheap enough to embed in peripherals these days, making it easy to hide your functionality in hard-to-extract embedded software.

[beambot]

They are even embedded in micro SD cards...

https://www.bunniestudios.com/blog/?p=3554