Amex Says App and Website Disruptions ‘Not Caused by a Security Vulnerability’T2Covered by 1 source · first reported by Gizmodo at 23 Oct, 00:39 UTCAmerican Express isn't saying precisely what caused the outages for some customers.outagessecuritySourcesT2Amex Says App and Website Disruptions ‘Not Caused by a Security Vulnerability’Gizmodo23 Oct, 00:39