Fraud is no longer just about stolen card numbers.
As artificial intelligence gives criminals better tools, fraud attacks are becoming faster, more convincing, and harder to spot. Payments Dive recently reported that Visa agreed to buy BioCatch, a fraud-prevention and cybersecurity company, for $2.4 billion. The larger issue for merchants is clear: payment companies are investing heavily in tools that can detect suspicious behavior before money is lost.
That matters because fraud is changing.
A scammer may have the right card number, the right password, or even access to a customer’s account. But how that person behaves online may still reveal that something is wrong. Fraud tools are now looking at signals such as device behavior, typing patterns, touch gestures, location, session activity, and other behavioral clues.
For merchants, this is not just banking technology news.
It is a warning that traditional fraud checks may not be enough.
Why AI-Driven Fraud Raises the Stakes
AI can help criminals write more convincing phishing messages, imitate customer service interactions, create fake documents, automate account takeover attempts, and scale attacks across many merchants at once.
That means fraud may appear more legitimate at first glance.
A transaction can pass basic checks and still be risky. A customer account may appear valid, but the person using it may not be the real customer. A fraudster may move quickly through checkout, change shipping details, or attempt multiple transactions before a merchant notices.
In 2026 and beyond, merchants should expect fraud prevention to become more layered.
Review Fraud Controls Now
Merchants should review:
Account login activity
Password reset patterns
Device and IP behavior
Shipping and billing mismatches
Transaction velocity
Failed payment attempts
Unusual order size
Customer account changes
Refund and return abuse
Manual review procedures
The goal is not to block every unusual transaction automatically. That can create false declines and frustrate good customers. The better approach is to identify risky behavior and route questionable activity for review.
The Main Takeaway
Visa’s BioCatch deal shows where the payments industry is heading: fraud prevention will increasingly depend on behavioral signals, AI tools, and real-time monitoring.
For merchants today, the practical response is to strengthen fraud controls before fraud becomes a chargeback, refund loss, or account takeover problem.
Merchants that combine payment data, customer behavior, device intelligence, and clear review procedures will be better positioned to protect revenue without creating unnecessary friction for legitimate customers.