Jonathan Craymer and Stephen Howes, GrIDsure
[Dave Birch] Jonathan Craymer and Stephen Howes are the inventors of the GrIDsure system and founders of GrIDsure Limited. GrIDsure is a “visual PIN” system, which replaces a simple numeric PIN with a pattern-based alternative. In this podcast, they tell us where the idea came from and where they hope it might go.

