One lightweight platform for the browser-upload gap
An extension your staff barely notice, a dashboard your security team relies on, and deployment that takes an afternoon — all built on a local-first architecture.
The extension
Watch Dog hooks file uploads at the browser layer and scans content locally in milliseconds. When sensitive data is found, it warns the user or blocks the upload per policy — before a byte leaves the machine. It works across 50+ upload destinations, from SharePoint and Slack to ChatGPT and Claude.
How interception worksSensitive data detected before upload: 2 SSNs, 1 credit card, client PII. Nothing was sent.
| User | Rule | Destination | Action |
|---|---|---|---|
| m.chen@acme.com | Credit card | chat.openai.com | Blocked |
| s.patel@acme.com | Client PII | drive.google.com | Warned |
| j.wong@acme.com | API key | github.com | Blocked |
| a.silva@acme.com | PHI (MRN) | slack.com | Blocked |
The dashboard
Admins define policies, review content-free audit logs, and watch live telemetry — all isolated per org with row-level security and role-based access. It's the record your security and compliance teams need, without ever storing file content.
Explore the dashboardRight-sized DLP everyone adopts
Local-first, zero exfiltration
File content never leaves the device. The opposite of API/agent DLP that ships your data to a vendor cloud.
Pre-upload interception
Stops the leak before it happens — intercepting FormData, XHR and fetch in the browser, not after the fact.
Covers the 80%
Legacy DLP targets the 10–20% of technical staff. Watch Dog protects everyone who uploads a file.
Deploy in an afternoon
Chrome Web Store install or silent MDM push. No proxies, no agents, no latency — minutes, not months.
Auditable & policy-driven
Org dashboard with a policy engine, audit logs, live telemetry and per-org RLS isolation.
Go deeper
Ready to close the human-error gap in your DLP?
Book a demo to see the org dashboard, or add the free extension and try pre-upload interception yourself.