A gold duplication exploit forced Amazon to halt all wealth transfers in New World yesterday, making it effectively impossible for players to move money around while it works to find and fix the problem. But it seems that by doing so, it opened the door to another exploit that enables players to dupe their gold without even trying.
This New World forum thread details how it's done. First, start an upgrade—the original post specifies a town upgrade, but a later followup says fort and lifestyle
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