Inside the 3D Secure Redirect: What Happens When Your Card Gets Challenged

Ever wonder what actually happens during that split-second redirect when you pay online? This episode unpacks 3D Secure 2 — the protocol running behind the scenes. We break down the Access Control Server (ACS), risk-based authentication scoring on 150+ data points, why SMS codes are the worst fallback, and the liability shift that makes merchants push you through the challenge flow even when it’s annoying. Plus: why the domain in your URL bar doesn’t match your bank, and what it means for security awareness. Episode #982827 — open it directly at myweirdprompts.com/982827