You should all know by now that U2 doesn’t surround itself with dummies. They were well aware of the all the phony wristbands that people used during the Elevation Tour to get into the heart, but it was too late in the process to really do much about it then.
They have apparently taken a different (and smarter) approach for this tour with the aim of making it much harder for fans to create their own wristbands and get into the bomb shelter illegitimately. This is from a friend who will remain nameless:
also important: there are ‘invisible’ target logos on the wristband, which can be made visible with black/uv light. they didn’t use black light to check the authenticity of the wristbands on opening night, but if the targets are there they most probably will in the future. so this time around, it looks like messing with the wristbands is not for the faint at heart…
Don’t claim you weren’t warned.