Auraya Updates and News

Four Digit Random Challenge with ArmorVox

Pryathna Sankaranarayanan | May 5, 2017 | 3 minutes


At Auraya, we take security seriously. Which is why we designed the four digit random challenge – to keep impostors out.

Improving Security

Building on ArmorVox’s highly secure text-prompted voice biometric function; we have introduced a new feature; a simple four digit random challenge response.

Designed to confirm that the speaker is alive (and not a tape recorder); this feature enables ArmorVox to generate a random four digit challenge response which is different every time the caller uses the system. The speaker then has to repeat the random four digits with the correct voice to confirm that they are a live person (and not a recording).

The technology uses Auraya’s patented Speaker Adapted Core Voice Biometric algorithms which offers superior performance and accuracy and which uses machine learning algorithms to automatically optimize the security performance no matter which language or accent is used by the customer.

This new feature allows Auraya’s partners to implement a very simple but highly effective four digit random challenge response into solutions to defeat tape recorder attacks in call centre, telephone self-service and smartphone security applications.

About Auraya

Auraya is a world leader in voice biometric technology with the mission of empowering people and organisations to interact and engage with convenience and security in all channels and languages.

Auraya has developed the next generation in voice biometrics technology, delivering easy to use and highly secure authentication and fraud detection capabilities. Auraya provides its technology to end user-organisations via a global network of partners that incorporate Auraya’s voice biometric engine, ArmorVox, into their secure, customer-facing applications and fraud detection solutions. The ecosystem of partners delivers solutions in all industries including government, education, healthcare, financial services, retail services and telecommunications.

ArmorVox is Auraya’s next-gen voice biometric engine designed for telephony and digital channel implementations. ArmorVox allows partners to provide frictionless and seamless customer experience and improved digital security by using its machine learning algorithms and patented features such as automated tuning process, speaker-specific thresholds and background models, impostor mapping, synthetic voice detection and voice collection process from browsers. Powered by ArmorVox, EVA is a ready-to-use, cloud-based voice biometric extension for telephony and digital channel solutions, providing voice identification & verification and fraud detection capabilities into existing business solutions.

If you would like to talk to the team at Auraya, send us an email at



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