The sophisticated hacking effort is the latest in a long line of financially motivated malware campaigns emanating from Brazil.

The Impresa Group joins the Jerusalem Post and the largest news organization in Norway among the recent victims.

Nickel, aka APT15, Ke3chang and Vixen Panda, was snooping on government agencies and others, the company said.

The countries are joining the same week that the NATO group is holding its annual Locked Shields cyberdefense exercise.