Controversial cryptocurrency advocate and cyber security entrepreneur John McAfee really doesn't want you to know where he is – but he does want you to know he still believes bitcoin is going to hit $US1 million by the end of next year.

To escape the clutches of various governments, including the US which is after him for tax fraud, the entrepreneur has been in hiding for the past four months, since being released from a Dominican Republic jail in July. He had been imprisoned there for a short time after authorities discovered firearms and ammunition on his yacht.