Systems and techniques are provided for electronic payment network security. Payment data including an origin and a destination for a payment in an electronic payment network may be received. A route of the payment in the electronic payment network may be estimated based on the origin and the destination. The estimated route of the payment in the electronic payment network may be input to a neural network. Fraud probabilities may be determined using the neural network. A fraud probability may include a value indicating a probability of fraud in the payment in the electronic payment network.