We've actually done a lot of consumer research and there are a few things that we think made the Open Sesame project uninteresting to consumers. The first is th

We've actually done a lot of consumer research and there are a few things that we think made the Open Sesame project uninteresting to consumers. The first is that it was too early and too few people had smartphones, the second is that it only increased complexity for security, and the third is that it was replaced by the SMS message as second-factor which was more broadly available and more easily understood.