TeleSign Fraud Prevention

TeleSign turns the phone number into a fraud detection powerhouse by mining intelligence from over 5 billion unique phone numbers, 2,200 digital identity signals, and a fraud consortium backed by some of the largest internet properties on the planet. Their Intelligence API delivers real-time risk assessments with numerical scores, comprehensive reason codes, and actionable recommendations, all from a single phone number input. It's the kind of signal density that makes synthetic identities, SIM swap attacks, and promotion abuse visible before they reach your front door.

The Phone ID API confirms whether a number is active, valid, and consistent with the claimed identity by combining live telecom carrier data with behavioral insights. SIM swap detection and recent porting event analysis catch account takeover attempts in progress, while velocity pattern analysis, format anomaly detection, and global threat indicators support risk-based verification that adapts to the threat landscape in real time. TeleSign analyzes over 2,200 digital attributes across phone, email, and IP datasets to dynamically allow, block, or flag new sign-ups in milliseconds.

For platforms dealing with onboarding fraud, IRSF attacks, or the endless creativity of bad actors trying to game verification systems, TeleSign plugs directly into access management and internal fraud models via clean APIs that developers actually enjoy working with. The intelligence layer operates at a scale and speed that manual review processes can't touch, catching fraudulent patterns across billions of data points before a single fake account gets created. When your phone number is the strongest proof of identity most users carry, TeleSign makes sure it actually proves something.