Mastercard Launches Stablecoin Security Risk Intelligence Solution

Mastercard (MA ) announced Stablecoin Security, a new risk intelligence solution for stablecoin payments, on October 19, 2026, at Money20/20 USA in Las Vegas, with Borderless.xyz and Keyrails as initial partners.

According to the October 19, 2026 announcement, the solution combines payment and blockchain intelligence to help financial institutions assess risk from payment initiation through on-chain movement and to identify fraud, scams, sanctions and other financial-crime risk indicators throughout the stablecoin payment lifecycle, including before funds move on-chain.

Delivered through a platform-agnostic application programming interface, the solution analyzes signals including transaction context, where funds came from, exposure to restricted parties and scam indicators, Mastercard said. It generates intelligence across the fiat and stablecoin payment lifecycle, including a risk score before a payment is completed, and it can be integrated into existing fraud, compliance and case management workflows. The company said this design allows financial institutions to support stablecoin payments without creating a separate risk operating model.

Mastercard illustrated the intended flow with an example: a coffee shop owner in Boston purchasing coffee beans from a supplier in Brazil initiates payment through its bank, which uses stablecoins to move funds across borders. Before the payment is sent, the bank’s service provider uses Stablecoin Security to analyze payment and blockchain intelligence, helping the bank determine whether the payment can proceed as expected or should be reviewed further. The Brazilian supplier then receives the funds and converts the stablecoin to local currency.

“By bringing payment and blockchain insights together, Stablecoin Security extends Mastercard’s fraud and risk capabilities to digital asset payments, giving institutions a clearer view of risk to make more informed decisions and build greater trust,” said Ann Johnson, executive vice president of Security Solutions at Mastercard.

BIS Study Cited on Transaction Complexity

The announcement pointed to research covering 593 million stablecoin transfer events across 141 million Ethereum (ETH ) transactions in 2025, in which nearly 60% of transfer events occurred within complex, multi-step transactions rather than simple, one-to-one payments.

That research is BIS Working Paper 1359, “The anatomy of stablecoin transactions”, published June 11, 2026, by Fabian Schär, Anneke Kosse, Tara Rice, Takeshi Shirakami and Jirapat Siridhasanakul. The authors analyzed more than 593 million event logs from 141 million Ethereum transactions executed in 2025 for three US dollar-denominated stablecoins: Tether (USDT), USD Coin (USDC) and PayPal USD (PYUSD). The paper distinguishes transfers, which record individual changes in stablecoin ownership as event logs, from transactions, which can bundle multiple transfers and other financial operations into a single, atomically executed sequence. To measure that structure, the authors developed vendor-independent metrics drawing on archive node data, public contract labels and event signatures, capturing token co-usage, computational burden, urgency and timing.

At the transaction level, the authors found that roughly one third of all stablecoin transactions generate multiple steps and exhibit computational complexity well beyond that of a simple payment, with some operations involving more than 1,000 steps. Because complex transactions each emit multiple transfer events, nearly 60% of all transfer events occur within them. Analyses that treat each transfer as a standalone payment therefore misclassify almost six in 10 transfer events, overstating both stablecoin transfer counts and transferred volumes, the paper states.

The study also found that the three stablecoins are not used interchangeably: each exhibits distinct patterns in transaction complexity, urgency, timing and integration with financial protocols, reflecting differences in institutional design and functional roles. The authors state that the findings portray stablecoins as programmable financial tools embedded in smart contract infrastructure, with implications for empirical research, regulatory frameworks and policy design. The publication notes that the views expressed are those of the authors and do not necessarily reflect the views of the BIS or its member central banks.

Initial Partners and Rollout

Both Borderless.xyz and Keyrails are participants in Mastercard’s Start Path Blockchain and Digital Assets startup engagement program. Keyrails supports high-value cross-border trade payments, particularly in emerging markets. Borderless.xyz gives financial institutions a single connection to licensed stablecoin providers in more than 113 countries and 72 currencies, handles the operations behind every payment, and routes each payment to the best provider, according to the announcement.

Alex Garn, chief product officer at Borderless.xyz, said working with Mastercard will help give financial institutions “the context they need to manage risk across providers, markets and currencies without adding another layer of operational complexity.” Rajpal Khangura, co-founder and chief compliance officer at Keyrails, said the collaboration strengthens the risk intelligence behind high-value trade payments and helps institutions move money across borders with greater visibility, confidence and settlement certainty.

Mastercard said Stablecoin Security is launching first in North America, with commercial availability expected worldwide in 2027. In 2027, the company plans to expand the solution’s reach and adoption further, including through BVNK, the stablecoin infrastructure provider it acquired in August 2026. Kimberly Mescal Julien, global head of partnerships at BVNK, said the company looks forward to exploring how such innovations can strengthen the infrastructure underpinning stablecoin transactions.

The solution sits alongside Mastercard’s existing digital asset capabilities, including Mastercard Crypto Credential and Crypto Secure, as part of its broader effort to bring trust, security and transparency to stablecoin and digital asset transactions, the company said.