Apply incident-response sequencing to contain a card-testing attack without unnecessary customer disruption.
Payment attack Checkout attempts spike 15x in 20 minutes, mostly tiny authorization amounts from repeated device and BIN patterns. Declines are not harmless when attackers are testing at scale. Incident handling Detect and analyze -> contain -> recover Treat the wave as an incident: confirm the fingerprint, apply narrow containment, restore normal flow, and update rules. shortcut Disable checkout for everyone. Fraud cost drops without making every customer pay the friction tax. Contain the fingerprint, not the whole customer journey. 01 Confirm 02 Contain 03 Recover Confirm the wave Analyze
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