Oracle has issued a fix, but many Micros systems could still be vulnerable.

Oracle is alerting customers it found malicious code in some of its MICROS point-of-sale systems and is requiring they change account passwords. The security measures come on the heels of reports the world’s No. 3 PoS service succumbed to a security breach perpetrated by the Carbanak gang. The breach involves malware placed on a MICROS support portal that gave attackers...