Your DLP watches uploads. Extensions don't upload.
An extension with page access reads data as it renders on screen and sends it out in the background. No file, no upload, no alert.
The problem
Traditional DLP inspects files and form submissions. A malicious or compromised extension skips all of that. It scrapes customer records, financial dashboards and internal wikis straight from the page, then ships them to its own server. The December 2024 Cyberhaven compromise showed how fast a trusted extension can become an exfiltration tool.
How Extension Auditor helps
- 01
Map data exposure: see which extensions can read page content, cookies, clipboard or network traffic on your business apps.
- 02
Code analysis flags extensions that collect page data or send it to unexpected destinations.
- 03
Continuous monitoring catches the update that adds exfiltration code to an extension you already approved.
- 04
Block by policy before sensitive data leaves through the browser.
- 05
Stream alerts to Slack, Teams, email or your SIEM via webhook.
Find out which extensions can read your most sensitive apps.
Start a 7-day free trial for your fleet, or scan any extension free to see the research behind every verdict.
Next step
Every browser risk has an extension behind it. Find yours before an update turns a trusted tool into malware.