币界网报道:A Russian woman who claimed to be a cryptocurrency expert was sentenced to seven years in prison by a Moscow court for planning and implementing a Ponzi scheme in 2023, defrauding investors of $23 million (2.2 billion rubles) worth of Bitcoin. The woman, Valeria Fedyakina from Simferopol, posed as a legitimate cryptocurrency trader with offices around the world under the name "Bitmama," promising customers that they could use cryptocurrency to transfer funds overseas to bypass Western sanctions. [Coin World]