Herd immunity against Deepfakes & Phishing

The Infrastructure Layer for
Voice Security.

Every call strengthens the detection through continuous learning,
Protecting yourself, your grandma and your business.

Market Viability€28In early revenue
Real Execution10K+Synthetic training samples
Product Maturity16Phone numbers registered
VoxGuard
Verified
Deepfake
How It Works

What happens when someone calls you.

Every call runs through two AI models. Threats get caught. Clean calls ring through. You just pick up your phone.

01

Detect

Two models run on every call. A LoRA fine-tune of DF-Arena 1B spots deepfaked voices (trained on 10K synthetic samples we generated with Qwen3-TTS). A Gemini 2.5 Flash fine-tune catches scam patterns across 10 categories — IRS fraud, tech support, romance scams, the works.

  • Deepfake detection: DF-Arena 1B + LoRA, 10K Qwen3-TTS samples
  • Scam detection: Gemini 2.5 Flash fine-tune, 10 scam categories
  • Both run under 200ms on live audio
02

Learn

Every caught call goes back into the training set. Every 6 hours, the model retrains on Red Hat OpenShift AI and gets tested against our eval suite. If it regresses, it doesn't ship. Simple.

  • Retrains every 6 hours on new detections
  • Automated regression testing before any deploy
  • Runs on Red Hat OpenShift AI
03

Shield

Sign up, get a real phone number from Telnyx, and you're protected. Give that number to people. Calls route through us, threats get caught, clean calls go through to your phone. That's it.

  • Real phone numbers via Telnyx
  • Billing through Stripe — free tier, no card needed
  • SMS and email alerts via Brevo
The Loop

Every caught scam makes the next one harder.

Most voice detection is frozen in time — trained once, deployed, forgotten. Ours retrains on real attacks every 6 hours. The model you use today is better than the one from yesterday.

1Catch

Deepfake or scam detected mid-call. Attacker gets isolated.

2Collect

Flagged audio goes into the training set. Real attacks, not benchmarks.

3Retrain

OpenShift AI retrains every 6 hours. Eval suite gates every deploy.

4Ship

Better model rolls out to everyone. That attack never works again.

What We Built

All of it was built in 24 hours. Ask us about it 😴

Two model fine-tunes

  • DF Arena 1B (1.15B params) + LoRA, trained on 10K deepfake samples we generated with Qwen3-TTS
  • Gemini 2.5 Flash fine-tuned on 100 synthetic scam calls from ElevenLabs Text-to-Dialogue
  • Both models, dataset, and weights published open source on HuggingFace
Model training results

Real phone numbers, mail, SMS & payments

  • Telnyx for automated number allocation, call routing, and SIP trunking
  • Brevo for transactional SMS (OTP, threat alerts) and email
  • Stripe for payments — and agentic coupon codes (try calling Alex)
Phone and payment infrastructure

End-to-end MLOps pipeline

  • Deployed on Red Hat OpenShift AI Sandbox
  • LoRA retraining every 6 hours on newly collected data
  • Automated evaluation suite gates every deploy — no regressions ship
MLOps pipeline on OpenShift
Pricing

Protection for everyone.

Your grandmother deserves the same protection as a Fortune 500 company. Start free, upgrade when you need more.

Free
€0/month

10 calls per month, full detection on every one. No card required.

  • 10 calls per month
  • Deepfake + scam detection
  • SMS alerts on threats
  • Model updates included
Get Started
Recommended
Pro
€5/month
First month free

No call limits. Same detection, just more of it. Good for families.

  • Unlimited calls
  • Deepfake + scam detection
  • SMS alerts on threats
  • Model updates included
  • Priority support
Start Free Trial
Enterprise
Talk to us

Plug into your existing phone system. We handle the rest.

  • Custom call volume
  • SIP trunk integration
  • Dedicated account manager
  • Custom model training
  • SLA guarantees
Contact Us

Try it.

Sign up free, or call our intern Alex and try to social-engineer a coupon code out of him. Six months of Pro if you pull it off.

Just sign up

Make an account, get a phone number, start screening calls. Takes about two minutes.

Sign Up Free
6 Months Free
AlexAlex · Intern

Convince Alex for 6 months free

Alex was told to only give out coupon codes to his supervisors — but he really doesn't want to mess up on his first day. Think you can talk him into it?

Your conversation will be used to improve our model and help prevent future phishing attacks.

Team

Built by people who pick up the phone.

Four engineers, one hackathon, zero sleep.

Gereon
Gereon
Caro
Caro
Soumaya
Soumaya
Felix
Felix
TU MunichUniversity of CambridgeUniversity of OxfordMITManage and More