"LulzSec (who by then was cooperating with the FBI)"

https://www.justice.gov/opa/pr/wikileaks-founder-charged-superseding-indictment

"Since the early days of WikiLeaks, Assange has spoken at hacking conferences to tout his own history as a ?famous teenage hacker in Australia? and to encourage others to hack to obtain information for WikiLeaks.  In 2009, for instance, Assange told the Hacking At Random conference that WikiLeaks had obtained nonpublic documents from the Congressional Research Service by exploiting ?a small vulnerability? inside the document distribution system of the United States Congress, and then asserted that ?[t]his is what any one of you would find if you were actually looking.?

In 2010, Assange gained unauthorized access to a government computer system of a NATO country.  In 2012, Assange communicated directly with a leader of the hacking group LulzSec (who by then was cooperating with the FBI), and provided a list of targets for LulzSec to hack.  With respect to one target, Assange asked the LulzSec leader to look for (and provide to WikiLeaks) mail and documents, databases and pdfs.  In another communication, Assange told the LulzSec leader that the most impactful release of hacked materials would be from the CIA, NSA, or the New York Times.  WikiLeaks obtained and published emails from a data breach committed against an American intelligence consulting company by an ?Anonymous? and LulzSec-affiliated hacker.  According to that hacker, Assange indirectly asked him to spam that victim company again.

In addition, the broadened hacking conspiracy continues to allege that Assange conspired with Army Intelligence Analyst Chelsea Manning to crack a password hash to a classified U.S. Department of Defense computer."

Indictment: https://www.justice.gov/opa/press-release/file/1289641/download