British security startup AimBrain has added optional audio and lip synchronisation technology to its facial authentication module to bolster security and counter fraud.

Dubbed AimFace//LipSync, the platform is designed to prove liveliness and counter even the most sophisticated spoofing technologies, the company claims.

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It will offer customers stronger user authentication as it combines facial recognition with a spoken challenge and lip movement analysis.

AimBrain lead scientist Efstathios Vafeias said: “We have developed an algorithm that uses both visual and audio data to detect a real person, not a presentation attack. By asking a user to say a randomised number to the camera, our technology now not only authenticates their face against a template, but verifies that the numbers match the prompt and analyses the synchronisation between the voice and lip movement.

“So as well as providing a step-change in security, this method maintains accuracy while being less susceptible to hardware or environmental changes.”

AimBrain added that it new feature will assess whether the face match the template; does the lips move in response to the voice challenge; and is the sound synchronised to the lip movement.

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AimBrain CEO and co-founder Andrius Sutas said: “Our lip sync technology means that to beat it, an attacker must be human, look exactly like the user and correctly say a random number, while we analyse the lip movements, within a limited timeframe. The level of sophistication required for an attack goes far beyond ordinary capabilities.”