Stripe introduces Radar, a tool to automatically detect and turn away credit card fraud.

Mastercard's AI-powered fraud detection system uses risk-scoring and behavioral biometrics to help identify suspicious transactions.

The end-of-year shopping whirlwind is underway. How does your credit card issuer watch out for fraudulent purchases on your account amid all those transactions?

When a card is swiped, the card issuer sends Spade the data in real-time, and that transaction is linked with a verified merchant identity.

But often, it isn’t enough. To detect credit-card fraud, for example, researchers train AI models to look for specific patterns of known suspicious behavior, gleaned from troves of data.