Agentic AI Security

Agentic AI Browser Security

AI browser agents are automating critical workflows across your organization. They navigate pages, submit credentials, and interact with sensitive systems autonomously. Surface Security provides purpose-built protections that defend agents against prompt injection, enforce credential scope, and monitor every outbound request, all without changing your automation code.

The Problem

AI agents trust what they read. Attackers know that.

AI browser agents built on Playwright, Puppeteer, Selenium, Browser Use, and Stagehand read and act on web page content autonomously. Attackers exploit this by embedding hidden instructions in pages: invisible text via CSS, unicode steganography, HTML comments, image alt attributes, and data attributes. An agent that reads a malicious page can be tricked into exfiltrating data, navigating to attacker-controlled domains, or submitting credentials to the wrong origin. Traditional browser security was built for human users. Agents face a fundamentally different threat model.

Hidden prompt injections in page content can hijack agent behavior without any visible indication

Agents may submit credentials to unauthorized domains through bugs or prompt injection attacks

No visibility into what data agents send outbound or which domains they contact

Automation frameworks ship with zero built-in security controls for agentic workflows

The Solution

Purpose-built security for AI browser agents

Surface deploys as a pre-configured extension bundle alongside your automation framework. Three layers of protection activate automatically: prompt injection detection scans every page the agent visits, exfiltration monitoring validates every outbound request against your allowlist, and credential scope enforcement pins credentials to authorized origins only.

Prompt Injection Detection

A DOM scanner detects 14 categories of hidden prompt injection on every page, from CSS-hidden text and unicode steganography to cross-language injection. Detected content is automatically sanitized and logged.

Credential Scope Enforcement

Credentials provisioned to an agent are pinned to specific origins. If an agent attempts to submit credentials to an unauthorized domain, the request is blocked and a breach event is recorded.

Exfiltration Monitoring

Every outbound request from fetch, XMLHttpRequest, and sendBeacon is checked against an admin-defined allowlist. Unauthorized data exfiltration attempts are blocked before they leave the browser.

Agent Identity Watermarking

Every agent gets a unique watermark ID injected as an X-Surface-Agent-ID header on all requests, creating a traceable audit trail across sessions from a single dashboard.

Key Benefits

Why teams choose Surface

Zero-Code Integration

Pre-configured extension bundles for Playwright, Puppeteer, Selenium, Browser Use, and Stagehand. No manual configuration required.

Zero-Trust for Agents

Every outbound request is intercepted and validated. No implicit trust for any domain or data flow.

Complete Agent Traceability

Watermarking and event sourcing answer which agent did what, when, and where from a single dashboard.

Gradual Enforcement

Start in learning mode to understand agent behavior, then tighten policies as you gain confidence.

See Surface Security in action

Request a demo to learn how Surface protects your organization at the browser level with full on-prem control.

Request a Demo See All Use Cases