Visa boosts A2A payment fraud prevention

A key drawback of account-to-account payments, vis-à-vis card payments, has been the lack of robust chargeback and dispute resolution protections. Once a consumer authorizes their bank to send an instant A2A payment, say to a merchant, they don't have much recourse if they input the wrong recipient or account information, or if the other person is a fraudster.

Visa's solution, called A2A Protect, protects against fraud and scams by providing a financial institution with a real-time risk score. This makes it possible for an FI to approve, stop or investigate the transaction before releasing the money. The card company just announced it is super-charging that capability and offering what it calls Enhanced A2A Protect.

The expanded solution introduces a new unified fraud score—Visa's first in market integration of Featurespace, a behavioral AI fraud detection technology developed for payments that Visa acquired in 2024. The enhanced, expanded solution means FIs can now get clearer signals to detect more fraud faster, while reducing unnecessary alerts.

This is going to become increasingly important, as A2A payments accelerate globally. Juniper Research projected A2A payments will surpass $58 trillion, globally, by 2028, which would represent a 160 percent increase over 2024 transaction numbers.

Keeping pace with fraudsters

A2A Protect leverages advanced AI and sophisticated transfer learning to provide banks with immediate access to critical global risk insights on A2A transactions, without waiting months for models to develop intelligence from a bank's own transaction data, or for other banks to join a consortium that pools A2A transaction data.

Robust data is available from day-one. FIs also can opt in to incorporate additional network-level signals to enhance the detection of emerging threats operating across the ecosystem.

"Fraudsters move fast across payment types, and financial institutions need risk insights just as quickly, without slowing down legitimate payments," said James Mirfin, head of risk and security at Visa. The enhanced "A2A Protect combines Visa's network expertise with Featurespace's technology to deliver a powerful new layer of protection that helps financial institutions detect more fraud earlier," he added

For FIs that opt into network-level intelligence sharing, A2A Protect highlights emerging scam hotspots and coordinated fraud activity—insights that may be difficult for individual FIs to detect alone, and that help the wider ecosystem respond faster to new threats, Visa explained in a press release. This provides FIs with more complete, early views of risk, helping to identify scams before authorization, Visa noted.

In fact, Visa A2A Protect is credited with increasing fraud detection by 75 percent in the first six months of deployment, and that was before the enhanced version was introduced.

A2A Protect integrates with FIs' current systems through a single API, reducing implementation time and complexity, Visa said. Each alert includes a plain language explanation of why a transaction is being flagged, helping fraud teams to act quickly and confidently without disrupting genuine customers.

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