We are a group of hackers, research RFID security and web security, we tested a number of systems and know that the general system of common problem. So we know where is weak and how to strengthen it.
Trust is mutual. If you support us, we will reward you. We disclose the details of most of the work in the post, this is our sincerity.

We go through a rigorous discussion then made this prototype. If you have questions about the details of its work, please point it out.
Thank you for attention to ours posts again.