Investigators earlier this year uncovered evidence of the hackers’ “longstanding compromises” at unnamed companies, according to a confidential memo.

In energy-import-dependent Taiwan, the CPC Corp. is a high-value target.

The new research is the latest indication of Iran’s disruptive capabilities in cyberspace.

Given that the group has been linked with data-wiping hacks in the past, the new activity has analysts’ full attention.

Researchers have dubbed the group Hexane, and they say it has been particularly active in recent months.

Operators of the nation’s 2.7 million miles of pipelines have grappled with cybersecurity risk as their infrastructure becomes more digitized.