There's no proof that a suspected hacking attack on the Supervisory Control and Data Acquisition (SCADA) systems of a U.S. energy plant actually occurred, according to the operator, NextEra Energy Resources.

Moreover, the company has claimed that the information posted on the Full Disclosure mailing list as evidence of the attack is already public.

The statements follow claims that a former employee who was reportedly fired illegitimately had sought revenge by hacking the system responsible for controlling parts of a 200-megawatt plant at a New Mexico wind farm.

Read more of "Energy plant hack all wind says operator" at ZDNet Australia.