His open-source encrypted peer-to-peer chat product went through rigorous challenges in the security community ultimately resulting in safer design choices.
These are people whose identity is publicly verifiable - members of the Internet identity, security, and privacy communities who believe in the power of a peer-to-peer, socially-verified reputation network.
Peer, who was refused entry to the United Arab Emirates for last year's tournament, is posing a security problem for organizers, who have scheduled her matches on an outside court with restricted access.