I don&#x27;t think that bitcoin deanonymization research is a bad thing. Perhaps it should be done in a way that tests the anonymity of transactions and accounts created <i>for the purpose of the research</i>, but to research the topic itself is easily classified as legitimate security research.<p>The issue starts when you publicly &quot;out&quot; organizations or people in your research findings, or take money from authorities with the understanding that you&#x27;ll report back data on people and organizations.