Polyguard: Anti-Deepfake Video Verification


Polyguard guarantees that who you see on your video call is who they really are. Our real-time, continuous verification system protects you from sophisticated impersonation attacks. Polyguard is currently available with Zoom, with support for Teams and Meet coming soon.

Problem: Next-Generation Impersonation Attacks


Threat Landscape: Attackers can generate deepfakes in real-time with ordinary computers, using personal data (photos, audio, etc.).

Targets: High and Ultra High Net Worth individuals, finance teams and professionals with authority over fund movements, advisors in real estate, institutional brokers, and wealth managers.

Non-Financial Impersonation Attacks include Kidnapping Scams targeting parents and grandparents, Romance Cons targeting lonely men through dating sites, Pig Butchering targeting cryptocurrency traders, and Political Attacks targeting military and diplomatic communications.

Problem: Pre-recorded Content

Risk: Attackers use pre-recorded deepfakes or clips for fraudulent purposes.

Solution: Polyguard warns you of pre-recorded content by popping out the sidebar and marking the user red.

Pre-recorded Content
Obama Deepfake

Real-Time Deepfakes

Attackers can now generate deepfakes in real-time on ordinary computers, using personal data (photos, audio, etc.).

With Glass-to-Glass Verification, Polyguard makes it known if someone is perceptually modifying what their camera is capturing, causing the Polyguard App to pop open and highlighting that something isn't right.

Identity Proofing

How do you know WHO you're talking to?

Government ID proofing paired with cutting edge facial biometric detection, ensures that the name you see belongs to that person.

Pre-recorded Content

How It Works

With Polyguard, your video call streams are continuously signed, ensuring "WHO You See Is WHO You Get" verification. Polyguard requires:

  1. Polyguard Virtual Camera: Verifies the authenticity of the camera being used and digitally signs each frame.
  2. Polyguard App/Plugin: Compatible with Zoom (Teams and Meet coming soon) to integrate seamlessly into your conferencing environment.
  3. Polyguard Bot: When a meeting is started, and the Polyguard app/plugin is enabled on your Zoom account, a Polyguard Bot joins your meeting to complete the glass-to-glass verification, ensuring that the video in the call is perceptually the same as what the camera saw.

Participants can use any standard webcam. Within standard video conferencing apps like Zoom, Microsoft Teams or Google Meet, the Polyguard Bot verifies the signature for each participant. If there's any discrepancy between what was signed and what is displayed, you are immediately notified.

The Polyguard Advantage

  • Continuous Verification of Signed Video: Ensures authenticity of live video.
  • WYSIWYG Assurance: Ensures the participant seen is the participant present.
  • Standard Webcam Compatibility: No special equipment needed.
  • Automatic Alerts: Immediate notification of any fraudulent participant.
  • Interactive Liveness Tests: Prevents screen-on-screen replay attacks.

Protects Against

  • Pre-recorded Content Attacks: Detects and blocks expired video signatures.
  • Deepfake Techniques: Detects post-processing filter changes.
  • Lost or Stolen Hardware: Uses secure biometrics stored in the device's enclave.

Use Cases

  • Internal Finance Teams: Automatic fraud alerts in Zoom meetings.
  • Wealth Management: Verified identity details for client assurance.
  • Signing Recorded Content: Secure public video broadcasts to prevent deepfake attacks.

We Value Privacy

Data Minimization: If we don't have it, we can't lose it. Account information is only what's required to process commercial transactions.

Client and Call-Side Video Hashing: No storage of video or audio, only perceptual hashes.

Temporary Data Storage: Meeting participant names stored only for meeting duration.

Preview Icons

Unknown Name

Unknown Name: Name provided by Apple ID (unverified). No document verification completed.

Verified Name

Verified Name: User has verified themself against a government ID on this device.

Known-Bad Name

Known-Bad Name: Something is not right. This is likely not the claimed user.

Unknown Biometrics

Unknown Biometrics: Biometric authentication has not yet been setup on this device.

Verified Biometrics

Verified Biometrics: Biometric authentication has verified this to be the claimant's face.

No Match Biometrics

No-Match Biometrics: The user you are seeing is not this device's authorized user.

Unknown Employer

Unknown Employer: User has not verified their place of work.

Verified Employer

Verified Employer: User has been verified by [company x] as being an employee.

No Match Employer

No-Match Employer: User has claimed to be an employee at [company x] - they are not.

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Polyguard, Inc.

Protecting businesses and professionals from AI-powered fraud, through industry-leading remote identity verification.


  Portland, Oregon


  +1 250-216-5112

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