The “unified wallet” sounds simple, but behind it is complex coordination between different banking systems.
Each bank runs its own rules and infrastructure, so a shared layer isn’t just UI — it’s deep backend integration.
@SignOfficial is building an SDK to act as a common access point for users across multiple banks.
Non-custodial design means banks keep control, while Sign only provides the interface layer.
But this balance between central oversight and bank-level control is very sensitive.
If trust and execution fail, this convenience can quickly turn into a major risk.
