Nexsus Architecture & Data Protection

Under-the-hood explainer of Nexsus: a real relational database (PostgreSQL + vector search), the 40-digit Nexsus Code (exact address per record), three retrieval modes (exact / semantic / graph), per-workspace database-level isolation, and defence-in-depth security (2FA, encrypted connections, audit log). Includes a real clip of the Security pane + sign-in activity log.