Marking a new era in passive authentication, fraud prevention and intelligence. We make digital identity simple and more secure.

Welcome to Callsign’s documentation portal From installing SDKs to managing authentication policies, you’ll find everything you need to make the most of Callsign’s products. Use the links below to …

A new era in behavioral authentication and intelligence. The Callsign platform provides more ease, more security, more privacy.

The Callsign manifesto Every element of our digital environment is becoming defined by personalization, speed, customer-centricity and efficiency. Customers expect solutions that are fluid, intuitive, and …

We want to seamlessly power the identification of every web, mobile and physical interaction. To do this we hire the brightest, most inquisitive minds who want to change the rules of identity and make this …

Benefits Through a simple SDK integration, Callsign can help you tackle fraud and meet authentication compliance – all while removing friction for customers.

Why partner with Callsign? We’re bringing together leading-edge technology players, integration experts and solution providers to make identification more sophisticated, more seamless, more secure. …

With Callsign's telco intelligence, the chips are down for fraudsters. We secure your SMS OTPs and protect against account takeover (ATO) with real-time SIM swap timestamps that ensure you're not …

Banks to retailers. Governments to digital platforms. From finance to e-commerce to workforce, Callsign’s unsurpassed identity solution is the first choice for organizations across the globe.

You transactions and user journeys should be smooth, unintrusive, passive. Callsign’s range of advanced mobile and web authenticators ensure you can deliver multi-factor authentication while …