Trezor's CTO on the Cold Card Hack: Randomness, Trust, and What Comes Next - Tomáš Sušánka | Ep. 153

Podcast: You're The Voice | by Efrat Fenigson · Efrat Fenigson

Opublikowano: 2026-08-07

Tomáš Sušánka is the CTO of Trezor, where he has worked since 2017. Tomáš joins Efrat for an urgent, unscripted conversation days after the Cold Card hardware wallet hack, in which a flawed random number generator left seed phrases vulnerable and resulted in more than 1,500 bitcoin stolen from affected users. Drawing on questions submitted directly by the Bitcoin community, Tomáš walks through what entropy actually is, how Trezor's own four-source random number generation works, why open-source visibility alone does not guarantee security, and what practical steps everyday self-custody users can take to reduce how much they have to trust any sing...