Oracle confirmed last week that its security was breached by a Russian organized cybercrime group infamous for hacking retailers and banks. Alarmingly, Oracle’s MICROS point-of-sale credit card payment system was one of the systems targeted in the attack. While the impact of the breach is still being investigated, the attack could have had wide impact. MICROS is one of the top three point-of-sale vendors worldwide and sells point-of-sale systems used at more than 330,000 cash registers globally.

It has been reported that Oracle became aware of the breach after its staff discovered malicious code on the MICROS customer support portal and systems. It is thought that the hackers installed malware on the troubleshooting portal in order to capture customers’ credentials as they logged in. Usernames and passwords could then be used to access customer accounts and remotely control MICROS point-of-sales terminals.

The attack has been linked to crime gang, Carbanak Gang, which has been accused of stealing more than $1 Billion from banks and retailers in the past. These guys clearly know what they are doing.