Broken two-factor authentication
https://www.bleepingcomputer.com/news/security/american-express-users-locked-out-for-hours-no-login-no-payments/
Yesterday, American Express users across the world including US, UK, and Europe, experienced widespread outages lasting hours.
And, the payment services giant advises that some users may continue to experience issues online or over the phone.
Broken two-factor authentication
Apr 2, 2022, 8:13am UTC
https://www.bleepingcomputer.com/news/security/american-express-users-locked-out-for-hours-no-login-no-payments/
> Yesterday, American Express users across the world including US, UK, and Europe, experienced widespread outages lasting hours.
> And, the payment services giant advises that some users may continue to experience issues online or over the phone.