Coldcard Post-Mortem: What Happened, Plus Open Debate

Bitcoin Barcelona (BBO) meets at MOB to go through the unauthorised transfers that began on 30 July from wallets held on Coldcard hardware devices, where users lost funds with nobody having physical access to the device. @counterweight presents the analysis of what happened and how to stop it recurring, followed by open questions and group discussion. The organisers state that price speculation will not be discussed. Free, held in Spanish.