Agentic AI Security: Guardrails for AI in the Browser

Agentic AI Security

When AI agents click, Surface decides what they can touch.

AI agents now read pages, fill forms, and call APIs at machine speed. Surface enforces native browser-layer guardrails so agents stay on script — even when a page tries to hijack them.

Agent · Surface Runtime
Guarded
agent.read(url)→docs.internal.corp
page.scan()→hidden_prompt detected · neutralized
agent.action()→POST chat.openai.com — denied (allowlist)
agent.action()→POST tickets.internal — allowed
agent.token→origin-pinned: tickets.internal
audit→logged → on-prem
scope: read+write ticketsstep-up: above $1K refundegress: 3 origins

Prompt Injection Detection

Inspect every page an agent reads — DOM, headers, OCR, hidden nodes — for direct and indirect prompt injection.

Origin-Pinned Credentials

Bind agent credentials to authorized origins so a stolen token can't be replayed elsewhere.

Credential Scope Enforcement

Constrain what an agent can authenticate to, with per-action approvals at high-risk steps.

Outbound Request Allowlisting

Only sanctioned destinations and actions execute — every other call is blocked at the browser.

Hidden DOM & Steganography Defense

Catch invisible prompts, off-screen instructions, and Unicode steganography embedded in pages.

Cross-Language Injection

Surface Vision evaluates intent across languages and obfuscations — not just English keywords.

Sanctioned agents

Run securely with bounded scope and on-prem audit trails.

Rogue agents

Discovered, scored, and blocked the moment they act in a session.

Hijacked agents

Prompt injection neutralized before any outbound call leaves the browser.

Surface Security

Stop Renting Visibility.
Start Commanding It.

Join enterprise security leaders who own their browser attack surface with Surface.

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