Prove Extends Silent Authentication to Wi-Fi and Mobile Web, Removing a Longstanding Limitation in Digital Identity

NEW YORK — September 30, 2026 — Prove, the leader in digital identity, today announced a major expansion of its SIM-based authentication capabilities, bringing carrier-backed cryptographic authentication to Wi-Fi and mobile web, environments where traditional silent authentication has historically been unavailable. The advancement removes a longstanding coverage limitation, allowing enterprises to establish device possession across more digital interactions without relying on SMS one-time passcodes. The expansion comes as Prove surpasses 10 billion authentications annually, more than 27 million each day, across the Prove Identity Platform℠.

Traditional silent authentication has relied on a direct connection to the mobile network to establish possession of a device. When consumers move onto Wi-Fi or interact through certain browser-based experiences, that signal can become unavailable, forcing businesses to introduce an active challenge such as SMS OTP or abandon an otherwise seamless authentication flow.

Prove's enhanced capabilities eliminate that dependency. Using SIM-based cryptographic authentication, Prove can establish proof of device possession even when the consumer is connected over Wi-Fi or mobile web, making silent authentication available across interactions where it was previously unavailable.

“Modern life is a chain of connected moments whether it’s checking a bank balance on the train, opening a new account from a coffee shop, paying for groceries on store Wi-Fi,”  said Ori Snir, Chief Product Officer at Prove. “Secure SIM-based authentication is the quiet link that holds that chain together so a consumer's mobile identity becomes the key, now the experience stays fast, automatic, and protected, no matter which network you're on.” 

For enterprises, that expanded reach creates new economic opportunities. More consumers can move through digital journeys without an SMS OTP challenge, helping businesses reduce authentication costs, preserve seamless onboarding experiences, and convert more prospective customers.

Bringing Cryptographic Authentication to More Digital Interactions

SMS OTP has long served as a fallback when silent authentication is unavailable. But every fallback introduces an additional customer step, increased delivery cost, and exposure to attacks targeting SMS-based authentication.

Prove's SIM-based authentication changes that equation by increasing the number of interactions in which possession can be established cryptographically and without an active customer challenge.

The capability is integrated into Prove Unified Authentication℠, which dynamically applies the strongest, lowest-friction and most economically efficient authentication method available for each interaction, escalating only when additional proof is required. Prove customers have reduced SMS OTP costs by up to 50% while improving their security posture. SIM-based authentication can extend that benefit to even more interactions.

Extending Seamless Onboarding to More Consumers

The advancement also increases the addressable reach of Prove Pre-Fill®, which uses deterministic identity intelligence and authentication signals to securely pre-populate identity information and reduce manual data entry during account opening and enrollment.

Previously, when the authentication needed to establish a trusted Pre-Fill session was unavailable, a consumer could be moved into a higher-friction experience. With newly available authentication coverage across Wi-Fi and mobile web, more consumers can engage with the seamless Pre-Fill path through more digital channels.

Luis Da Silva, SVP, Head of Authentication at Synchrony: “Prove’s partnership with mobile carriers to expand silent authentication coverage is a critical industry initiative that will allow us to both improve customer experience and reduce fraud, and we look forward to partnering with Prove to leverage it.”

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About Prove

Prove makes identity work – verifying real people, businesses, and agents in real time without friction or guesswork. Trusted by 19 of the top 20 U.S. banks and thousands of leading brands worldwide, Prove helps the biggest names in banking, fintech, crypto, gaming, commerce, insurance, and healthcare grow with confidence. Prove’s identity verification and authentication solutions streamline onboarding, prevent fraud, and deliver seamless customer experiences across channels. With Prove, identity is no longer a question – it’s proven.

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Prove: prove@calibercorporate.com