"Cryptocurrency firms Tether and Bitfinex agree to pay $18.5 million fine to end New York probe". CNBC. Retrieved December 22, 2021. ↑ "Bitfinex Settles New York Probe Into Tether, Hiding Losses," Bloomberg, February 23, 2021. ↑ "Bitfinex Says It Repaid Tether for $550M Loan at Center of NYAG Probe". nasdaq.com.