• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Some Fortune Crypto pricing data is provided by Binance.
NewslettersFortune Crypto

Tornado Cash and the future of U.S. crypto sanctions

By
Jeff John Roberts
Jeff John Roberts
Editor, Finance and Crypto
Down Arrow Button Icon
By
Jeff John Roberts
Jeff John Roberts
Editor, Finance and Crypto
Down Arrow Button Icon
January 9, 2023, 9:44 AM ET
Crypto coins
A new report shows how the Treasury Department’s Office of Foreign Assets Control has been policing crypto.Photo Illustration by Fortune; Original photo by Getty Images

Blockchain analytics firm Chainalysis published an intriguing report this morning that highlights how the Office of Foreign Assets Control (OFAC)—an arm of the Treasury Department that deploys financial sanctions to squeeze U.S. enemies around the world—has become more adept at targeting crypto activity.

The report includes data on how OFAC is going after the crypto wallets of a growing range of bad guys from ransomware crooks to terrorist financiers to those meddling in democratic elections. More intriguingly, it also points out that, in the past two years, OFAC has slapped sanctions not only on individuals but on corporate and national entities, too. The latter includes the now-defunct dark web market Hydra as well as North Korea’s infamous Lazarus Group, a team of hackers that carries out sophisticated cyber and crypto robberies to support the dictatorship’s military.

Meanwhile, the Chainalysis report also looks at whether OFAC slapping sanctions on crypto entities deters criminal activity. In the case of the rogue Russian crypto exchange Garantax, the answer appears to be “not really” since the country’s lawless regime and the customers using the service don’t care about OFAC designations in the first place.

The report comes to a different conclusion, however, in the case of Tornado Cash, an open-source protocol touted as a privacy tool that lets anyone “mix” Ethereum coins and conceal their provenance. OFAC added the service to its blacklist last August, which forced the operator of the service’s front-end website to shut it down. According to Chainalysis, this led to fewer criminals (as identified by their wallet addresses) using Tornado Cash.

The problem, as the report acknowledges, is that the underlying Tornado Cash protocol remains operational since it is not tied to a specific company or individual who can pull the plug—rather it is software that no one really controls. This means that whatever OFAC’s ambitions it may be confronting a technology beyond its reach. In the meantime, the agency has also angered law-abiding users who view Tornado Cash as a legitimate tool to protect privacy in an age of growing financial surveillance.

Finally, Friday’s newsletter about Taylor Lorenz’s story on crypto and influencers touched a nerve with readers. A number of people wrote to say my sentiment was bang-on (thank you!), but others, including Lorenz, took to Twitter to angrily complain that my comment that she had made her name writing about teen trends was patronizing and dismissive. I spoke to Lorenz after the episode, and, as often happens in the wake of a social media blowup, found her to be very friendly and reasonable—and understandably upset that my description may have minimized the very brave work she has done reporting on the far right and other nasty elements of the internet. Rest assured that was not my intention. Onward.

Jeff John Roberts
jeff.roberts@fortune.com
@jeffjohnroberts

DECENTRALIZED NEWS

The Justice Department and the Securities and Exchange Commission are reportedly investigating whether loans made by trading firm Genesis to its parent company, Digital Currency Group, were improper. (Bloomberg)

Bitcoin prices are holding well above $17,000 in the wake of positive macroeconomic news. (CoinDesk)

Federal prosecutors in Seattle have issued subpoenas to U.S. hedge funds over their dealings with Binance. (Washington Post)

An Ohio man, who was sentenced for robbing Bitcoins from a wallet the IRS had seized from his brother, spent $122,000 of the loot to swim in a pool of $1 bills alongside strippers. (CoinDesk)

Ethereum developers agreed that the top priority for the next major upgrade of the network, named “Shanghai” and slated for March, will be to let customers withdraw staked coins. (The Block)

MEME O’ THE MOMENT

While you're waiting for the SBF mini-series:

This is the web version of Fortune Crypto, a daily newsletter. Sign up here to get it delivered free to your inbox.

About the Author
By Jeff John RobertsEditor, Finance and Crypto
LinkedIn iconTwitter icon

Jeff John Roberts is the Finance and Crypto editor at Fortune, overseeing coverage of the blockchain and how technology is changing finance.

See full bioRight Arrow Button Icon

Latest in Newsletters

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Newsletters

AIEye on AI
Worried about AI taking your job? New Anthropic research shows it’s not that simple
By Sharon GoldmanJanuary 15, 2026
14 hours ago
NewslettersMPW Daily
Denmark’s prime minister is the latest female world leader to tangle with Trump—this time over his efforts to take control of Greenland
By Emma HinchliffeJanuary 15, 2026
15 hours ago
NewslettersCFO Daily
Citi CFO Mark Mason says the bank is strong and his successor will ‘continue the momentum’
By Sheryl EstradaJanuary 15, 2026
19 hours ago
NewslettersTerm Sheet
Exclusive: Mytra raises $120 million Series C to scale supply chain robotics amid industry boom
By Allie GarfinkleJanuary 15, 2026
20 hours ago
The Verizon logo displayed on a smartphone screen on September 30, 2024. (Photo illustration: Justin Sullivan/Getty Images)
NewslettersFortune Tech
Verizon hit with a major U.S. outage
By Andrew NuscaJanuary 15, 2026
21 hours ago
NewslettersCEO Daily
The new CEO leading Saks Global through bankruptcy follows a management philosophy of ‘leading with love’
By Diane BradyJanuary 15, 2026
21 hours ago

Most Popular

placeholder alt text
Personal Finance
Peter Thiel makes his biggest donation in years to help defeat California’s billionaire wealth tax
By Nick LichtenbergJanuary 14, 2026
2 days ago
placeholder alt text
Europe
Americans have been quietly plundering Greenland for over 100 years, since a Navy officer chipped fragments off the Cape York iron meteorite
By Paul Bierman and The ConversationJanuary 14, 2026
1 day ago
placeholder alt text
Health
The head of marketing at Slate posted on LinkedIn requesting cleaning services as a benefit at her company. The next day, HR answered her call
By Sydney LakeJanuary 15, 2026
1 day ago
placeholder alt text
Success
Despite a $45 million net worth, Big Bang Theory star still works tough, 16-hour days—he repeats one mantra when overwhelmed
By Orianna Rosa RoyleJanuary 15, 2026
22 hours ago
placeholder alt text
Economy
California's wealth tax doesn't fix the real problem: Cash-poor billionaires who borrow money, tax-free, to live on
By Nick LichtenbergJanuary 14, 2026
2 days ago
placeholder alt text
Politics
One year after Bill Gates surprised with the choice to close his foundation by 2045, he's cutting staff jobs
By Stephanie Beasley and The Associated PressJanuary 14, 2026
1 day ago

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.