币界网报道:Crypto users are buzzing with speculation that Ripple’s infrastructure could quietly make its way into the mainstream. The speculation comes after American Express (Amex) recently informed clients of cross-border payments and wire transfer delays amid systemic upgrades. System Upgrade or Strategic Pivot? Amex Sparks Ripple Integration Buzz American Express notified clients of delays in cross-border payments and wire transfers. The American bank holding company and multinational financial services corporation cited a ‘Federal Reserve System update’ and a ‘wide system upgrade’