The logo of the Tinkoff Bank is pictured at their head office in Moscow on March 6, 2020. – The shares of the Russian private Tinkoff Bank, a pioneer of online banking technology, collapsed on the stock market on March 6, 2020, after Oleg Tinkov the president and founder of the TCS Group, the parent company of Tinkoff Bank, was charged with filing false tax returns, according to the U.S. Department of Justice. (Photo by Alexander NEMENOV / AFP)