MasterCard is currently observing an increase in phishing attempts against merchants and is alerting acquirers to educate merchants on the various forms of malware and phishing scams criminals are using in an effort to mitigate against these attacks.

The new wave of attacks involves criminals using traditional phishing techniques to gain access to the merchant's account to ultimately perform test transactions on the merchant's system or terminals.  Merchants need to be aware of suspicious emails or phone calls requesting any sensitive information.

Click here to read the bulletin and learn more about how to defend against phishing attacks.