On-line Monitoring for detecting suspicious purchases and ATM transactions The following POS transaction are monitored: Multiple use of Bankcards at the same merchant outlet on a single day Bankcards used at more than 2 different merchant outlets in our network on a single day Purchases where the transaction amount exceeds the daily average transaction value of the merchant. Remark: In case of new merchants the value is compared to MCC average (successful transactions) Rejected purchases where transaction amount exceeds the predefined amounts set by rejected codes