The Enforcement Directorate is investigating nine overseas firms, including those in Hong Kong and Estonia, that were allegedly used to divert funds from a bitcoin-based ponzi scheme operated by Variable Tech. The scheme collected 80,000 bitcoins and diverted funds worth INR 6,606 crore ($915 million) through the nine firms to purchase properties abroad. The investigation has resulted in the provisional attachment of properties worth INR 69 crore. | Mumbai news