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Coinbase CEO Brian Armstrong is calling for legislative changes in the US to allow stablecoin holders to earn “onchain interest” on their holdings.

In a March 31 post on X, Armstrong argued that crypto companies should be treated similarly to banks and be “allowed to, and incentivized to, share interest with consumers.” He added that allowing onchain interest would be “consistent with a free market approach.”

There are currently two competing pieces of federal stablecoin legislation working their way through the legislative process in the US: the Stablecoin Transparency and Accountability for a Better Ledger Economy (STABLE) Act, and the Guiding and Establishing National Innovation for US Stablecoins (GENIUS) Act.

In reference to the stablecoin legislation, Armstrong said the US had an opportunity to “level the playing field and ensure these laws pave a way for all regulated stablecoins to deliver interest directly to consumers, the same way a savings or checking account can.” 

Armstrong: Onchain interest a boon for US economy

Armstrong argued that while stablecoins have already found product-market fit by “digitizing the dollar and other fiat currencies,” the addition of onchain interest would allow “the average person, and the US economy, to reap the full benefits.”

He said that if legislative changes allowed stablecoin issuers to pay interest to holders, US consumers could earn a yield of around 4% on their holdings, far outstripping the 2024 average interest yield on a consumer savings account, which Armstrong cited as 0.41%.

Armstrong also said onchain interest could benefit the broader US economy — by incentivizing the global use of US dollar stablecoins. This could see their use grow, “pulling dollars back to U.S. treasuries and extending dollar dominance in an increasingly digital global economy,” according to the Coinbase CEO. 

He also argued that the potential for a higher yield than traditional savings accounts would result in “more yield in consumers’ hands means more spending, saving, investing — fueling economic growth in all local economies where stablecoins are held.”

“If we don’t unlock onchain interest, the U.S. misses out on billions more USD users and trillions in potential cash flows,” Armstrong added.

Currently, neither the STABLE Act nor the GENIUS Act gives the legal go-ahead for onchain interest-generating stablecoins. In fact, in its current form, the STABLE Act includes a short passage prohibiting “payment stablecoin” issuers from paying yield to holders:

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Similarly, the GENIUS Act, which recently passed the Senate Banking Committee by a vote of 18-6, has been amended to exclude interest-bearing instruments from its definition of a “payment stablecoin.”

Commenting on the current state of the STABLE Act, Representative Bryan Steil told Eleanor Terrett, host of the Crypto in America podcast, that two pieces of legislation are positioned to “mirror up” following a few more draft rounds in the House and Senate — due to the differences between them being textual rather than substantive.

“At the end of the day, I think there’s recognition that we want to work with our Senate colleagues to get this across the line,” Steil said.

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A new semi-permissionless privacy tool, Privacy Pools, has launched on Ethereum, allowing users to transact privately while proving their funds aren’t linked to illicit activities.

The privacy tool, launched by Ethereum builders 0xbow.io on March 31, earned support from the likes of Ethereum co-founder Vitalik Buterin, who not only backed the privacy project but made one of the first deposits on the platform. 

0xbow.io said that it implements “Association Sets” to batch transactions into the anonymous Privacy Pools and that a screening test is conducted to ensure that those transactions aren’t linked to illicit actors, such as hackers, phishers and scammers.

gm Ethereum ☀️

It is our great honor to announce the mainnet launch of Privacy Pools!

ETH users can now achieve on-chain privacy, while still dissociating from illicit funds

It is now up to all of us to Make Privacy Normal Again 🫡

More info in this thread 👇 pic.twitter.com/3nJO0AxoD1

— 0xbow.io (@0xbowio) March 31, 2025

The Association Sets are “dynamic” — meaning that if a transaction is admitted but later found to be illicit, it can be removed from the set without disrupting any other deposits, 0xbow.io said.

If a deposit is disqualified, the user can click the “ragequit” function to return the funds to their original deposit address.

The innovation is part of 0xbow.io’s vision to “Make Privacy Normal Again” while also attempting to achieve regulatory compliance.  

Privacy protocols have received considerable backlash from regulators in recent years due to their increasing use by illicit actors to launder funds. 

One of those privacy tools, Tornado Cash, was sanctioned by the US Treasury’s Office of Foreign Assets Control (OFAC) between August 2022 and March 2025 after it was linked to around $7 billion laundered by the North Korean state-backed Lazarus Group.

Tornado Cash has since been removed from OFAC’s blacklist after a US appeals court said the sanctions were unlawful in January 2025.

0xbow.io noted that initial deposits are limited to 1 Ether (ETH) but that the limit would be raised once the privacy protocol is more battle-tested.

Privacy Pools inspired by Buterin and others

Over 21 ETH has already been transferred into Privacy Pools from 69 deposits, including at least one from Buterin, 0xbow.io noted.

In addition to Buterin, 0xbow.io said it also received investment support from Number Group, BanklessVC, Public Works and several angel investors.

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0xbow.io also praised Buterin, Chainalysis Chief Scientist Jacob Illum, and two academics at the University of Basel in Switzerland for crafting a September 2023 white paper outlining how Privacy Pools could be built. 

0xbow.io strategic adviser Ameen Soleimani also contributed to the paper, which has seen over 12,000 downloads and has been cited in nine other papers.

The Privacy Pool code also passed a successful audit from Audit Wizard. a smart contract auditing firm co-founded by former Apple engineer Joe van Loon.

More than $41 billion worth of illicit transfers were made in 2024,  which made up 0.14% of total onchain volume for the year, according to the Chainalysis 2025 Crypto Crime report published on Jan. 15.

While it marked around an 11% fall from 2023, Chainalysis said that figure could climb to around $51 billion as more criminal-tied addresses are found.

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North Korean cyberwarfare attacks on the cryptocurrency industry are growing in sophistication and in the number of groups involved in such criminal activity, crypto firm Paradigm warns in report titled “Demystifying the North Korean Threat.”

North Korea-originated cyberattacks range from assaults on exchanges and social engineering attempts to phishing attacks and complex supply chain hijacks, the report says. In some cases, the attacks take a year to play out, with North Korean operatives biding their time.

The United Nations estimates that between 2017 and 2023, North Korean hackers have netted the country $3 billion. The total haul has skyrocketed in 2024 and this year, with successful attacks against crypto exchanges WazirX and Bybit, which together netted attackers around $1.7 billion.

Paradigm writes that the North Korean organizations orchestrating these attacks number at least five: Lazarus Group, Spinout, AppleJeus, Dangerous Password, and TraitorTrader. There is also a coalition of North Korean operatives who pose as IT workers, infiltrating tech companies around the world.

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High-profile attacks and predictable laundering methods

Lazarus Group, the most well-known North Korean hacking team, is given credit for some of the most high-profile cyberattacks since 2016. According to Paradigm, the group hacked Sony and the Bank of Bangladesh in 2016 and helped orchestrate the WannaCry 2.0 ransomware attack in 2017.

It has also taken aim at the cryptocurrency industry, sometimes to great effect. In 2017, the group hit two crypto exchanges — Youbit and Bithumb. In 2022, Lazarus Group exploited the Ronin Bridge, resulting in hundreds of millions in lost assets. And in 2025, it infamously stole $1.5 billion from Bybit, sending shock throughout the crypto community. The group may be behind some Solana memecoin scams.

As Chainalysis and other organizations have explained, Lazarus Group also has predictable money laundering methods after securing a haul. It breaks up the stolen amount into smaller and smaller pieces, sending them to countless other wallets. It then swaps the more illiquid coins for those with higher liquidity and converts much of it to Bitcoin (BTC). After that, the group may sit on the stolen money for a long period of time until the attention from law enforcement dies down.

The FBI has so far identified three alleged members of the Lazarus Group, accusing them of cybercrimes. In February 2021, the US Justice Department indicted two of those members for involvement in global cybercrimes. 

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