EnFact Debit Card Fraud Detection System
CFCU is employing a risk management system for debit card fraud detection. It uses a neural network, daily reports and call center of skilled analysts who work around the clock watching for suspicious activity.
Here’s how it works:
- The system reviews each debit card transaction and scores it based on the degree of probability that it might be fraudulent. Then, a fraud analyst reviews each card alert report to determine if notification should be made.
- If it’s determined there is a high probability of fraud, the cardholder is notified immediately. Two call attempts are made every two hours for up to two days. (These calls will be made between 8:00 a.m. and 9:00 p.m. local time.) If the fraud analyst cannot reach the cardholder during this period, and the activity is considered high risk, the card may be temporarily blocked.
- When contact is made, the cardholder will be asked about the transaction and card status. (To differentiate a call like this from an identity theft phishing attempt, we will not ask for any personally identifying information. Our callers will already have this information.) If the cardholder confirms a transaction was legitimate, the fraud analyst thanks the member and notifies the Credit Union.
- If the cardholder confirms fraud, the system blocks the card from future use, thus protecting the member’s funds. It will also mark the transaction as confirmed fraud for use in future scoring and tracking to help identify potential fraudulent patterns or trends. In the case where a card is blocked, CFCU will work closely with the member to quickly reissue a new card.
More about debit card transactions
If a signature-based debit card transaction doesn’t go through at a merchant location, try it as a pinned transaction (enter your PIN as part of the transaction). From time to time, we may block signature-based transactions at a particular merchant type if we are experiencing high volumes of debit card fraud.

