According to @Tether_to, the Assange Family, Rumble CEO Chris Pavlovski, Twenty One Capital's Jack Mallers, and former White House crypto advisor Bo Hines are confirmed headliners for the fourth annual Plan B Forum in Lugano, with the announcement posted on Tether's official channel and a link to the Tether website for further details (source: @Tether_to tweet dated Aug 22, 2025; source: tether.io/news/assange-f…).