Ex-Signature Bank chair warns big banks could use blockchain to take market share from smaller rivals as N3XT goes global

AI Summary Scott Shay said big banks could use blockchain payments to take market share from smaller rivals as N3XT expands globally. fulltext: 122 chars | fulltext source: rss-fallback | summary method: extractive Original: https://www.theblock.co/news/business/2026-08-19-ex-signature-bank-chair-big-banks-blockchain-n3xt-412202 Source: The Block