In the latest twist in the historic "Panama Papers" data leak and scandal, the founding partner of the law firm whose files were dumped, exposing illicit offshore holdings of global political leaders, celebrities, and others, says his firm was hacked by an outsider.

Ramon Fonseca, founding partner of Panama-based Mossak Fonesca, yesterday reportedly denied any wrongdoing by his firm in the wake of the leak of law firm's 11.5 million documents.  

The International Consortium of Investigative Journalists (ICIJ) on Monday published a report based upon a yearlong study of some 2.6 TB of leaked data, mostly emails. The epic leak exposed illegal practices used to mask wealth and evade taxes, and has resulted in the resignation of Iceland's prime minister, while exposing dealings of friends and associates of Russian President Vladimir Putin, and associates and relatives of several other national leaders, including China's President Xi Jinping.

Fonesca said he has filed a complaint with the Attorney General, according to Reuters. He said his firm did nothing illegal and didn't destroy documents or aid in any tax evasion or money-laundering activity.

"We rule out an inside job. This is not a leak. This is a hack," Fonseca said.  "We have a theory and we are following it," he told Reuters.

Fonseca says the emails "were taken out of context," and that the publicity surrounding the leak is basically sensationalized journalism. 

"The only crime that has been proven is the hack," Fonseca said. "No one is talking about that. That is the story."

Meantime, speculation has run high over just how the breach occurred and why. 

See the full Reuters report for more details on Fonseca's claims.