The Facebook logo is displayed during the F8 Facebook Developers conference on April 30, 2019 in San Jose, California. Justin Sullivan | Getty Images

Facebook is already facing scrutiny over its lofty plan to launch a global cryptocurrency. The social network's announcement Tuesday caught the attention of senior congressional finance committee members, global regulators, former lawmakers and industry insiders who highlighted potential roadblocks and downsides in Facebook's ambitions. "With the announcement that it plans to create a cryptocurrency, Facebook is continuing its unchecked expansion and extending its reach into the lives of its users," Rep. Maxine Waters, D-Calif., chairwoman of the House Financial Services Committee, said in a statement Tuesday. She asked that the company agree to delay the project until Congress and financial watchdogs can take a closer look. On Tuesday morning, the social network announced that it would launch a cryptocurrency, run by the nonprofit Switzerland-based Libra Association in 2020. The project will not be fully run by Facebook, according to its white paper. It's being spurred by a collaboration of organizations and companies that include Mastercard, Visa and PayPal, Stripe, Uber and Spotify. Still, Facebook has plans to profit from it through a new subsidiary Calibra that is building a digital wallet to store and exchange the cryptocurrency. Facebook shares jumped initially on Tuesday after the launch, but gave up the gains throughout the day and ended lower. The stock was lower again Wednesday, down 1.7% in early trading.

'All kinds of alarms'

Although Libra would not be controlled entirely by the social network, lawmakers are on high alert following Facebook's high-profile data and election scandals. That awareness appears to be spilling over to the cryptocurrency launch — especially for politicians who are also calling for a breakup of Big Tech. Former Rep. Barney Frank, a key architect of the post-crisis financial reform, said "without a doubt" it will become a hotbed issue ahead of the 2020 election. That, combined with cryptocurrencies' anonymity, "raises all kinds of alarms." "There's already a concern that Facebook is being used by bad actors to disguise their identity and pretend to be other people — cryptocurrency enhances your ability to do that," the former congressman told CNBC in a phone interview. "In this case particularly, it's a problem because there is potential synergy between the anonymity you get from cryptocurrency and the ability to mislead people on Facebook." The hesitation on the plan came from both parties. The senior Republican on the House Financial Services Committee, Rep. Patrick McHenry, called for a hearing on the project and "its potential unprecedented impact on the global financial system," while the senior Democrat on the Senate Banking Committee, Sen. Sherrod Brown, said "Facebook is already too big and too powerful, and it has used that power to exploit users' data without protecting their privacy." "We look forward to responding to lawmakers' questions as this process moves forward," a Facebook spokesperson told CNBC. On an international level, a Group of Seven nations working group will meet this week to discuss how to patrol cryptocurrencies on a global scale in light of Facebook's announcement, according to the Financial Times. The group will reportedly include central banks and the International Monetary Fund, and look into how to prevent money-laundering. Bank of England Governor Mark Carney said Tuesday at a conference organized by the European Central Bank in Portugal that he is keeping an "open mind" on the cryptocurrency but warned that it could face intense regulation if and when it takes off. "Anything that Facebook is doing is obviously receiving greater scrutiny from the government's perspective," said Jeremy Allaire, CEO of cryptocurrency Circle. "I think this is a tipping point for regulation and for mainstream awareness." Allaire, whose company is backed by Goldman Sachs and also launched a U.S. dollar-backed stablecoin with Coinbase, said Facebook and a broader group of companies' entrance is an overall positive for the industry. The Libra blockchain — a digital ledger that can be seen by multiple parties but can't be altered — "looks interesting," Allaire said, but it's still not entirely clear just how "open" it will be and over what time frame.

Who sees the data?

Matthew Roszak, CEO and founder of Bloq and chairman of the Chamber of Digital Commerce, said Facebook won't have a majority governing power over the cryptocurrency. But the new blockchain platform will supply plenty of new customer information. "There's a treasure trove of new data here. The question is, who has access to it, and who has eyes on that?" Roszak said. Regulators will likely question tech giants' end game when it comes to this new data set. While Facebook might not want access to certain types of data, there's an "obvious desire to monetize this," according to Stephen Palley, partner at Anderson Kill and co-chair of the law firm's blockchain and virtual currency group. "How do you can you really have something that is decentralized and distributed that is actually controlled by a bunch of Silicon Valley plutocrats? Color me skeptical," Palley said. "There's some nontrivial antitrust questions that haven't been widely answered. This might lead to them being more heavily regulated." There's also the recurring criticism of too much power in the hands of a few tech companies. The Justice Department is reportedly preparing an antitrust probe of Google and has been given jurisdiction over Apple's practices as part of a broad review into tech companies' behavior, according to Reuters. The Federal Trade Commission has reportedly taken over probes into Amazon and Facebook's effects on competition. Pressure is coming from both sides of the political aisle heading into the 2020 presidential election. Democrat Elizabeth Warren has been the most vocal presidential candidate on the issue. Her campaign sponsored a billboard in San Francisco that said "BREAK UP BIG TECH." President Donald Trump said in a recent CNBC interview that "there is something going on in terms of monopoly" when it comes to technology companies. "Lawmakers are going to say, 'Look, Facebook, you're already huge," Frank said. "Please don't get into another line of work that's just too much. You don't want to have this conglomerate that does all of this stuff."

New crypto laws

Some in the industry say Facebook's entrance could bring awareness and understanding of how these networks work, and spur legislation. The interest by tech giants may "force" lawmakers to learn and understand the issues and bring attention to the space, according to Kristin Smith, head of external affairs at Blockchain Association, a D.C. lobbying group. "At the moment, Facebook obviously has some problems in Washington," Smith said. "They've lost trust with many policymakers so there's a tough road ahead to show that an effort that is part of a broader group, and that there's going to be very open governance. There's definitely going to be some work to do in gaining trust." Smith is lobbying for U.S. policies including cryptocurrency tax treatment to change in order to accommodate the new tech. For example, the tax code has a minimal exemption for personal foreign currency transactions. Cryptocurrencies do not qualify for the exception and based on guidance issued in 2014, the IRS treats virtual currencies as property under U.S. tax law, meaning the sale or exchange of tokens for other goods is a taxable event, she said. "That's something that does add a lot of friction into the system and is definitely going to need to be cleaned up and fixed in the U.S. tax code for this to fully take off," said Smith, whose firm lobbies for public policy on blockchain issues.

Momentum in Congress