From the source
Payment and card-setup activity can both be used to test card details. A burst of declines is worth investigating alongside the surrounding activity.
OWASP / Automated threatsAt the case desk
In our fictional case, the question is whether the concentrated group fits ordinary retries. The exercise adds a release note so that an operational explanation has to be considered, too.
Can your incident view separate retry behaviour from a burst across distinct card references?Try the related case
Source checked 5 November 2026. Our interpretation and fictional exercise are separate from the source guidance. No affiliation or endorsement is implied.