Unrecognized REST API order created

We have noticed a new order created in the admin which has come from the REST API. (Order was automatically cancelled)

We have nothing running that creates orders in this way and the IP country and billing/shipping address countries don’t match up etc.

Is it something we should be concerned about? What would be the best way to lock this down so it can’t happen again?
The only integrations we have enabled is Feefo & Magento Analytics.

We are on Magento 2.4.2

Thanks