For those who don’t know Sentinel Rainbow is a DRM dongle these were popular in the 90’s through early 2000’s for enterprise/business software especially that c

For those who don’t know Sentinel Rainbow is a DRM dongle these were popular in the 90’s through early 2000’s for enterprise/business software especially that could be useful on the smaller end of the businesses scale (CRM, ERP, CAD/CAM) where piracy concerns were much bigger due to the relative high cost of development combined with a relatively small market to begin with. SAAS pretty much made all of that obsolete, since with SAAS you get an unbeatable DRM for free.