Coinbase pushes Zero-Knowledge Proofs as solution to 'arcane' BSA

Coinbase has been pushing hard for the modernization of the U.S. Bank Secrecy Act (BSA) via the integration of Zero-Knowledge Proofs (ZKPs) into the financial compliance framework. 

In a statement from August 4, Coinbase’s Chief Legal Officer, Paul Grewal, argued that the BSA, designed for a paper-based financial system, is outdated for today’s digital economy.

ZKPs are a tech-forward solution for modern finance that can prove compliance, reduce transmission and exposure risk for sensitive consumer data, and streamline transaction monitoring. It’s past time for Congress to modernize the BSA. 2/3

— paulgrewal.eth (@iampaulgrewal) August 4, 2025

Why does Coinbase want to modernize the BSA?

As far as Paul Grewal is concerned, the BSA is an obvious area that needs improvement. He described it as a critical tool for “finding bad actors and combating illicit finance.”

Grewal highlighted how the BSA’s Know-Your-Customer (KYC) requirements force the collection of vast amounts of personal data, which are typically stored in centralized databases that are vulnerable to cyberattacks and frequently go unused, creating unnecessary privacy risks.

Despite Congress’ recent activity, the BSA is still hampered by decades-old requirements that reflect paper-based compliance protocols and a financial system that sees funds moved over days rather than seconds.

Grewal noted that policymakers are now pointing to the speed at which money can move as an issue, but he says it would be better for them to focus on using technology for solutions rather than demonizing it for creating problems.

As a solution, he proposed ZKPs, which would allow users to verify specific details—like identity or age—without disclosing sensitive underlying data, a move that could enhance not just privacy but also security.

ZKPs make this possible by using cryptography to enable one party (called the prover) to convince another party (called the verifier) that a certain statement is true without revealing any information beyond what is strictly necessary for that verification.

For example, ZKPs could allow an individual to open an account with Coinbase by proving they are not on sanctions lists or are not a minor, and they would not have to share extensive personal information in the process.

Now that the GENIUS and CLARITY Acts have been signed, Grewal has called upon Congress to pivot to BSA reforms. He also says the Treasury needs to establish a public-private partnership to identify areas where existing processes built on the antiquated systems need to be adjusted to function properly in a ZKP-based system.

Coinbase is enduring a recent stock decline

Grewal’s statement comes days after shares of Coinbase fell 12% in pre-market trading Friday (August 1), a knee-jerk reaction to the crypto exchange missing Wall Street expectations for second-quarter revenue.

The company’s revenue grew by 3.3% year-over-year to $1.5 billion, but it fell short of the $1.59 billion estimate and was down from $2 billion in the previous quarter.

Spot trading volumes also declined globally and in the US, with average market capitalization roughly flat during the period, but net income surged to US$1.43 billion, thanks mostly to unrealized gains on its crypto holdings and investments.

Analysts believe this dip is a great opportunity for investors with a longer investment horizon who still want to get in on the company’s stock as Coinbase remains well-positioned for future growth, despite the performance.

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