Dan Cowhig, prosecuting, also told the court that Mr Hutchins had made a confession during a police interview.
"He admitted he was the author of the code of Kronos malware and indicated he sold it," said Mr Cowhig.
The lawyer claimed there was evidence of chat logs between Mr Hutchins and an unnamed co-defendant - who has yet to be arrested - where the security researcher complained of not receiving a fair share of the money.
It's almost all spin. Enterprises are not adopting Dropbox (or Box) at any real scale because of privacy, security and control of data concerns. It's why you won't see any business that has data compliance requirements (such as banks) listed as a reference customers. The opportunity for large businesses to use Dropbox is very limited.