Polygon enabled confidential stablecoin payments in digital wallets on May 4, 2026 through an integration with the Hinkal protocol, which uses zero-knowledge proofs to verify each transaction without revealing the sender, recipient, or amount transferred. This feature is available through Polygon wallets in USDC and USDT.
Polygon Labs, the developer of the network of the same name, hints at secrecy. is the biggest barrier Financial institutions will adopt payment rails via public chains.
The Ministry of Finance points out that the company: Payroll teams and corporate payments departments already operate using this standard in traditional banking systems. And they don’t want to move their operational flows to a registry that exposes every trading partner and every dollar amount to network monitors.
Polygon Labs is the team behind the Polygon network, one of the blockchains with the largest amount of stablecoins in circulation. At the end of 2025, Polygon’s stablecoin supply reached $3.3 billion, the highest level in three years.
The company has been strengthening its institutional position for months. As noted by CriptoNoticias, in January 2026, the company announced that it would acquire Coinme and Sequence for over $250 million. Its purpose is Operates as a regulated payment platform in 48 US states.
Privacy as an institutional requirement
The technical mechanism for this new functionality works through protected transfer funds. hinkal Route operations through that pool and apply zero-knowledge proofs Validate transactions without exposing data.
The company claims that this protocol is non-custodial. Funds move directly between wallets and the operator has no control over them during the process.
Polygon Labs adds the following for each transfer: Pass regulatory compliance checks The company says this separates privacy and opacity to regulators.
The company described the feature as the first component of a broader direction within an open financial infrastructure and announced that it would release new privacy features as soon as they became available.
I would like to add that this feature currently only works within the official Polygon wallet via options. private sendingTherefore, users of other wallets cannot directly access these private transfers yet. Additionally, transactions typically have an additional cost of gas compared to regular transfers.
Compared to other privacy solutions, positioned as an alternative more accessible and regulated It’s better than Zcash (which offers full privacy by default) or Aztec (which focuses on Ethereum) because it combines zero-knowledge proofs with mandatory KYT verification before each transaction.
In this way, the polygon try to bridge the gap Traditional bank transfer and chain payments for finance, payroll, and intercompany payments.
