4D ULTRASOUND BIOMETRICS

The Human Trust Layer

ID4US verifies the human, not only the credential. One touch combines identity, liveness and physical presence for high-assurance authentication.

Finger touching an ID4US sensor with surface, tissue, blood-flow and microvascular sensing layers
Surface fingerprint
Sub-surface tissue
Blood flow
Microvascular

Built for the highest levels of human trust

Prove identity

Surface and sub-surface biometric recognition.

Prove liveness

Blood-flow sensing confirms that a living person is present.

Robust against attacks

In-depth structural analysis makes spoofing materially harder.

Accelerate deployment

One integrated hardware and software platform for multiple products and security levels.

A couple of dozen patents

Protecting the core technology platform.

FIDO BioLevel 2+ certified

Independently assessed biometric security.

FAR in the 10⁻⁶ range

FRR below 3%

Integrated HW + SW platform

USB-C, PCIe, MIPI and more.

One touch
Four layers of human signal

ID4US combines complementary biometric and physiological signals that are materially harder to reproduce than a surface pattern alone.

01 / Surface finger

High-performance capture, including dry or worn fingers, with a familiar user gesture.

02 / Deep tissue

Structures below the skin add attack resistance that is built into the sensing physics.

03 / Blood flow

Physiological activity proves that a living human is present at the moment of action.

04 / Microvascular

A distinctive vascular signature extends the platform toward ultra-high-assurance workflows.

Four ID4US assurance layers progressively increasing protection
COMPOUNDING PROTECTION

Each additional layer exponentially reduces an attacker's chances of success

Surface identity, sub-surface anatomy, physiological liveness and microvascular signatures converge into a single trust decision. Security no longer depends on matching a fingerprint. It depends on proving the presence of a living human.

Designed to integrate
Built to scale

A hardware and software platform for manufacturers, integrators and trusted-device ecosystems.

FUNCTIONAL USB-C DEEPSCAN PLATFORM

One platform. The fastest path to product

Start with a working ID4US platform, validate the use case, tune the assurance level and prepare the path to embedded integration.

Plug into existing USB-C devices
Test fingerprint, anti-spoofing and liveness workflows
Use one familiar touch gesture
Accelerate proof of concept and partner evaluation
ID4US DeepScan USB-C biometric hardware and software platform

From POC to product

Use the USB-C platform to prove value quickly, then transition to an embedded module adapted to the target device and security workflow.

OEM integration

Compact architecture, low-power design and standard USB-C, PCIe and MIPI interfaces support integration into devices, access systems and trusted platforms.

Trust where identity failure matters

ID4US is designed for high-value actions where impersonation, spoofing or credential sharing creates material risk.

Biometric access to an ultra-restricted vault protecting critical assets

Physical access

Critical infrastructure, data centers, government, airports, industry and defense.

Biometric authorization of a critical banking and treasury operation

Banking & finance

High-value approvals, treasury operations, multi-party authorization, wallet access and custody operations.

Driver identity, liveness, blood-flow and physiological analysis in a premium vehicle

Automotive & mobility

Secure entry, driver identity, fleets, personalization and future physiological sensing.

User authenticating on a premium laptop with an illuminated integrated biometric sensor

Trusted digital devices

Laptops, terminals, access modules and embedded platforms requiring human assurance.

NEWS & EVENTS

Latest News & Events

Meet ID4US at upcoming technology and ultrasonics events around the world.

Event

IEEE IUS 2026, Raleigh

Join ID4US in Raleigh for the IEEE International Ultrasonics Symposium and discussions around next-generation ultrasound sensing and biometrics.

View event
Event

KES 2026, Seoul

Meet ID4US in Seoul at Korea Electronics Show, where electronics, digital health, mobility and trusted-device ecosystems converge.

View event
Event

China Hi-Tech Fair 2026, Shenzhen

Connect with ID4US in Shenzhen around high-assurance biometrics, embedded integration and future trusted devices.

View event

About ID4US

Create a unique biometric signature to secure what matters most to you

ID4US develops a 4D ultrasound biometric platform that combines surface fingerprint, sub-surface anatomy, physiological liveness and microvascular signatures into a single trust decision.

Founded in 2022 by serial entrepreneur Christophe Bernard and based in the Grenoble area and Tours, ID4US brings together 40 experts in ultrasound sensing, semiconductors, embedded systems, software, AI, materials and biometric algorithms. The company is supported by a couple of dozen patents protecting its core technology platform.

As a B2B technology provider, ID4US works with OEMs, integrators and strategic partners to move from proof of concept to embedded deployment across physical access, banking and finance, automotive and trusted digital devices.

Executive Team

Christophe Bernard, CEO, CTO & Founder of ID4US

Christophe Bernard

CEO, CTO & Founder

Olivia Dumoulin, MD & CFO of ID4US

Olivia Dumoulin

MD & CFO

Thierry Divel, System Architect at ID4US

Thierry Divel

System Architect

Florian Ayel, AI, Software & Biometrics Product Leader at ID4US

Florian Ayel

AI, Software & Biometrics Product Leader

Patrice Meilland, VP Sales at ID4US

Patrice Meilland

VP Sales

Frequently asked questions

Core facts about ID4US technology, evaluation and integration.

What does ID4US verify?

ID4US combines biometric identity, physiological liveness and physical presence verification in one trust decision.

How does ID4US 4D ultrasound differ from conventional fingerprint sensing?

The platform captures complementary surface, sub-surface tissue, blood-flow and microvascular signals rather than relying on a surface fingerprint alone.

How can a partner evaluate ID4US technology?

Partners can start with the functional DeepScan USB-C hardware and software platform, validate a use case and then move toward embedded integration.

Where can ID4US technology be integrated?

ID4US can be integrated into physical access systems, banking and financial workflows, vehicles, laptops, terminals, keyboards and other trusted digital devices.

No critical action without the verified human behind it

ID4US is creating a new biometric trust architecture that combines identity, liveness and physical presence in a single embedded platform.

Contact ID4US