Norway's National Security Authority revealed that 50 oil companies with Norwegian interests had been hacked on Wednesday. 250 more, the agency warned, were at risk of digital intrusion.
A spokesperson for one of the attack's targets, Statoil, claimed that "We have received a warning and are checking our systems according to routines."
Though the agency claims to have suspicions about the perpetrator, they certainly aren't saying who. Attacks like this on major industries could provide a much more obvious financial reason to orchestrate large-scale hacks.
Discovering the right backdoor into a country's economic backbone means that you could cripple them at a moment's notice. That's why the cybersecurity industry is so important.