What is Sonomos?
Sonomos is a browser extension that catches sensitive data before AI does — locally, with zero data exfiltration.
The problem
Every time you paste text into ChatGPT, Claude, Gemini, or Grok, you risk exposing personally identifiable information (PII) — names, emails, phone numbers, Social Security numbers, medical record numbers, and more. For professionals in healthcare, legal, financial, and HR, this is a compliance violation waiting to happen.
How Sonomos solves it
Sonomos runs entirely in your browser. It uses a combination of advanced pattern analysis and on-device AI models to identify PII in real time. Nothing ever leaves your machine.
- Dagger — the detection engine scans text for 62+ categories of sensitive data
- Cloak — the masking engine intercepts and redacts PII before it’s sent to AI platforms
- Risk Widget — a traffic-light indicator (red/amber/green) showing real-time page risk
Who it’s for
Sonomos is built for compliance-conscious professionals and teams in regulated industries:
- Healthcare — HIPAA-covered entities handling PHI
- Legal — firms processing privileged client information
- Financial — institutions subject to PCI-DSS, SOX, GLBA
- HR — departments managing employee PII
Local-first architecture
Unlike cloud-based DLP tools, Sonomos processes everything on-device. All detection and masking happens inside your browser — no data is sent to external servers for analysis. This means your sensitive information never leaves your control.
Ready to get started? Install Sonomos.