U.S. authorities said on Friday they have halted a $1.7 billion unregistered digital token offering by the messaging service Telegram Group Inc and its TON Issuer subsidiary.

Brazilian financial technology start-up Nubank now has 15 million clients, the firm's chief executive said on Friday, a figure which underlines the rapid growth of the Sequoia Capital-backed venture in Latin America's largest economy.

U.S. payments processor PayPal Holdings Inc said on Friday it was leaving Libra Association, the entity managing the Facebook-led effort to build global digital currency Libra, making it the first member to exit the group.

Visa , Mastercard Inc and other key financial partners may reconsider their involvement in Facebook Inc's cryptocurrency, Libra, the Wall Street Journal reported on Tuesday, citing people familiar with the matter.

The Facebook-conceived Libra cryptocurrency, to be launched by a Geneva-based association next year, is not intended to replace existing currencies, Libra Association Managing Director Bertrand Perez said on Friday.

Mexican banking regulator CNBV said on Thursday it received applications from 85 companies to formally operate in the country under its new fintech law as the government of President Andres Manuel Lopez Obrador pushes for more financial inclusion.

Bitcoin struggled on Wednesday to recover from the three-month lows it reached a day earlier, moves that traders blamed on a lukewarm reception for a futures product from the owner of the New York Stock Exchange.

JPMorgan Chase & Co is investing $25 million to support fintech start-ups that help low-income Americans be more financially healthy, bank executives said on Tuesday.

The head of the U.S. Securities and Exchange Commission repeatedly refused to tell a congressional panel on Tuesday whether or not Facebook's Libra would be regulated as a security under his watch.

The U.S. dollar will make up 50% of the basket of currencies backing Facebook's planned digital coin Libra, with the euro, yen, sterling and Singapore dollar comprising the rest, Der Spiegel reported, referring to a letter from Facebook.