Dead Simple Hack Allows for “Rebel” Keurig K-Cups

Dead Simple Hack Allows for “Rebel” Keurig K-Cups | Hackaday:
"If you haven’t actually used a Keurig coffee machine, then you’ve probably at least seen one.
They are supposed to make brewing coffee simple.

....Unfortunately newer versions of these machines have a sort of DRM, or lockout chip.
In order to prevent unofficial k-cups from being manufactured and sold, the Keurig machines have a way to detect which cups are legitimate and which are counterfeit. 
It appears as though the machine identifies the lid specifically as being genuine.
It turns out this “lockout” technology is very simple to defeat. "