https://www.theguardian.com/technology/2017/aug/14/marcus-hutchins-malware-wannacry-kronos

British cybersecurity researcher who stopped WannaCry attack is denying that he created and sold malware designed to steal people’s online banking details

British cybersecurity researcher Marcus Hutchins has pleaded “not guilty” to charges of creating and selling malware designed to steal people’s online banking details.