Fraudulent Transactions Notification
In Shopify, they specify if an order may be fraudulent, based on incorrect cvv or postcode or where the card was issued, proxy server, how many times the transaction was attempted, previous transaction history on the card, etc.
This is provided by Stripe, and notified in the orders as an amber or red warning. It still processes them, but you have the option to cancel or follow up on them, or face a chargeback and lose the stock and money for that transaction.
It would be good if DEAR just conveyed that info in the order processing area.