In February 2025, a Fortune 500 company unknowingly interviewed a deepfake candidate over Zoom—complete with stolen credentials, falsified documents, and AI-generated video. The fraud was caught only after onboarding, when the real person behind the avatar failed to appear in person.
This is no longer a rare event. Synthetic identity fraud has become one of the fastest-growing attack vectors in cybersecurity, and one of the least addressed. Encryption protects your data. Firewalls protect your network. But who protects your meetings?
Polyguard is a real-time identity verification layer built for the era of generative impersonation. It prevents deepfakes, impersonators, and unauthorized participants from entering critical meetings—not by flagging suspicious behavior after the fact, but by requiring cryptographic identity proof before any session begins.
The Problem: You Can’t Secure What You Can’t See
Today’s communication stack assumes identity. Email addresses, display names, caller ID, and even verified phone numbers can be spoofed or borrowed. Signal, WhatsApp, and FaceTime encrypt messages, but they can’t tell you who’s on the other end.
Worse, traditional fraud detection models are reactive. By the time a deepfake or proxy actor is discovered, damage is done. HR has hired a ghost. Legal is reviewing leaks. Board minutes are compromised.
The Solution: Verified Identity Before Access
Polyguard flips the model: no one joins a secure meeting until they prove who they are. Each participant is verified through:
- Live facial biometrics with liveness detection
- Government-issued ID validation (powered via Near Field Communication (NFC) or third-party verification)
- Device attestation and location signals
The system produces tamper-proof logs and cryptographically signed affidavits for every verified session.
Key Features & Architecture
Biometric Proofing with Liveness Detection
Polyguard uses front-facing depth sensors—Light Detection and Ranging (LiDAR), Time of Flight (ToF), TrueDepth—to scan for a live, 3D human subject. No flat image or AI-generated video can pass.
- All checks run locally on the user’s phone
- Depth, motion, and lighting changes ensure spoof resistance
- Facial matches are cryptographically bound to session ID and timestamp
Document Verification at Scale
Polyguard integrates with third-party Identity Verification (IDV) providers to validate 12,000+ document types from 230+ countries, and directly reads NFC-secured ePassports and REAL IDs using the smartphone’s secure element.
- Combines third-party validation with on-device chip scanning
- Adjusts fraud risk scores based on document trust level and issuance country
Local Storage with Hardware-Backed Security
Polyguard ensures all verified credentials (ID, biometrics, metadata) are encrypted and stored in a personal credential store on the user’s device.
- Encryption keys live in the Secure Enclave or Trusted Execution Environment (TEE)
- Only your claims leave the device – all identity proofs remain on the device
- User identity is never aggregated in the cloud
Device Attestation
Each session requires proof that the Polyguard app is running on an untampered, authentic device.
- Apple App Attest and Play Integrity Application Programming Interface (API) confirm binary integrity and device authenticity
- Prevents use of jailbroken phones, emulators, or spoofed app versions
Certainty Scoring
Every participant receives a certainty score, derived from independent signals:
- Trust level of submitted document
- Device health and integrity
- Biometric match strength
- Continuity of location across verifications
Admins can set certainty thresholds based on role or meeting sensitivity.
Use Cases: Where Polyguard Delivers
Remote Hiring
- Prevent deepfake or proxy interviews before they happen
- Comply with Equal Employment Opportunity Commission (EEOC), Office of Foreign Assets Control (OFAC), and General Data Protection Regulation (GDPR) standards
- Generate immutable audit logs of each candidate session
Board & Executive Meetings
- Guarantee quorum with cryptographic identity proof
- Alert admins to unverified participants in real-time
- Prevent insider leaks and reduce governance risk
Insider Threat Reduction in Finance & Legal
- Require verified identity before accessing confidential deal rooms, board materials, or legal briefs
- Replace password-based or device-level controls with biometric, tamper-proof session gating
- Generate cryptographically signed audit logs that show who accessed sensitive materials, when, and from where—useful for compliance reviews, litigation defense, and internal investigations
- Deter leaks and unauthorized collaboration by tying every view, share, or download to a real, verified human
High-Stakes Negotiations
- Provide notarized Business Records Affidavits for legal defensibility
- Verify remote counsel, investors, or board observers
- Mitigate reputation and disclosure risk from unauthorized access
Secure Telehealth & Remote Therapy
- Ensure patients and providers are who they say they are—required for medical licensing and insurance reimbursement
- Comply with HIPAA and telehealth location restrictions (e.g., state licensure requirements)
- Prevent medical fraud and protect against synthetic patient profiles
Deployment: Seamless Integration
Polyguard integrates directly with Zoom, available through the Zoom App Marketplace. Admins can:
- Set up in under 5 minutes
- Invite participants via their Polyguard mobile app
- Automatically generate identity reports per session
No infrastructure changes. No learning curve. Just real-time certainty at the edge of trust.
Final Word: Trust Before Transmission
Cybersecurity has historically focused on encrypting what’s sent. But in a world where any actor can fabricate their face, voice, and documents, the new frontier is verifying who’s sending it.
Polyguard is built for that world.
Before the call connects. Before the data is shared. Before the damage is done.
Verify every participant. Document every meeting.
To learn more or deploy Polyguard: download at polyguard.ai
Contact: [email protected]
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