The free Bitcoin self-custody school that starts with real risks, not theory. In Spanish and English. No sign-up, no accounts, nothing leaves your browser.
A 3-minute audit across 8 risk dimensions. 24 questions, a 0–100 score, and a prioritized fix list — not just a number.
Five questions about your practice (never your keys) that tell you whether your seed falls in the vulnerable firmware window.
20 real cases across 10 channels: 16 documented scams and 4 legitimate messages. Learn to tell the difference.
Straight answers, each to one question. None of them asks for your seed phrase, and none ever will.
Why trust it? This page ships with connect-src 'none'. Your browser itself blocks every request it could make. We can't phone home even if we wanted to — it's not a promise, it's a restriction your browser enforces against us. Open DevTools → Network and see for yourself.