Hinkal's shielded pool and zero-knowledge proofs hide sender, receiver, and amount – while KYT screening keeps every transaction compliant.

Don't scroll Twitter for crypto news
One email. Five minutes. Everything that matters today
Polygon Wallet Adds Shielded USDC and USDT Payments in May 2026
Polygon Labs launched private stablecoin transfers inside its consumer wallet on May 4, 2026, letting users send USDC and USDT without exposing sender, receiver, or amount on the public blockchain. The feature, built in collaboration with privacy protocol Hinkal, uses zero-knowledge proofs to verify every transfer and runs Know Your Transaction compliance screening before execution.
Stablecoins on public chains just got a privacy layer. Follow Web Snack to track how institutional crypto payment infrastructure is changing – before your competitors catch on.
Why Public Blockchain Transparency Has Blocked Institutional Stablecoin Volume
On any public chain, every stablecoin payment publishes three facts: who sent it, who received it, and how much moved. For a treasury team paying suppliers or a fintech running payroll, that means every counterparty relationship and transaction amount sits permanently readable on a public ledger.
Traditional banking rails don't work that way. Banks process payments without broadcasting the details to the network. Polygon Labs has described this gap as "the single biggest gap between onchain rails and what institutional finance actually needs to move serious stablecoin volume."
The private payments launch fits a pattern Polygon Labs has been building out through early 2026 under its Open Money Stack initiative. The company signed a Visa partner settlement integration, struck a deal with Meta to run USDC creator payouts in Colombia and the Philippines on Polygon, and acquired Coinme and Sequence in January to add regulated fiat access and wallet infrastructure to its stack.
"Privately Send": How Hinkal's Shielded Pool Handles the Transfer
Inside wallet.polygon.technology, users now see a "Privately Send" option alongside the standard send flow. Selecting it routes the transfer through Hinkal's shielded pool instead of a standard on-chain transaction. Zero-knowledge proofs confirm that a valid payment occurred without revealing the sender, receiver, or size to outside observers.
External parties can verify the mathematical proof of a completed transfer. They cannot identify who sent or received it, or how much. The protocol is non-custodial: funds never sit with Hinkal or any operator during the process. Any app already integrated with the Polygon wallet can enable private payments for its users without building new infrastructure.
Marc Boiron, CEO of Polygon Labs, described the intent on X: "Privacy can take multiple shapes onchain. Our job is to make the type of privacy you want available. We have had Railgun available since 2021. Now you get another option that is easy for businesses to incorporate for their payments needs with compliance options built into it to meet their regulatory obligations."
Shielded Transfers With KYT Checks Built In – What That Means for Compliance
Every private transfer passes through Know Your Transaction screening before it executes. Polygon Labs put the compliance logic plainly: "Privacy means opacity to the market, not opacity to regulators." The KYT layer checks each payment against sanctions lists and risk databases before it enters the shielded pool.
That's the argument that has stalled most shielded-pool projects in regulated markets: that privacy and compliance can't coexist. Polygon's design runs the compliance check inside the transfer flow itself, so the details stay hidden from public observers while remaining auditable by regulators.
The distinction is practical for institutional operators. Treasury teams and payments operators under AML obligations need regulator access to transaction records. They don't need every supplier payment and payroll amount visible to competitors in a blockchain explorer.
What Polygon Has Confirmed for Private Payments Going Forward
Polygon Labs confirmed that more privacy features are in development under the Open Money Stack but gave no specific dates. The Hinkal integration sits alongside Railgun-based private transfers, which have been available on Polygon since 2021 – a different tool for different use cases, with the Hinkal option designed specifically for business payment workflows.
For app developers already integrated with the Polygon wallet, the rollout costs nothing extra. Any wallet integration can surface the "Privately Send" option in its send flow without standing up new infrastructure.
The feature is live at wallet.polygon.technology for USDC and USDT. Polygon has not announced a timeline for adding other assets.
Polygon just opened private USDC and USDT transfers to every business building on its wallet. Subscribe to Web Snack for more on how institutional crypto payment infrastructure is shifting.
P.S. This article is for informational purposes only and does not constitute investment advice. Always conduct your own research and make independent decisions.
Like this story? There's more tomorrow
Join Web Snack – no fluff, just value
