[jbermudes]

If I understand correctly, the DRM system consists of a special ink on the lid of the cup. Therefore, some people have figured out that you can simply cut off that piece and tape it to the detector so that it will always think you have an official cup inside.

[dllthomas]

A work around for Keurig might be to include a serial number in the signed payload, and keep a list of recent serial numbers.