Keep sensitive data out of AI prompts

Help employees use AI safely by stopping sensitive text and files before they reach third-party AI tools.

Trusted By

Employees are sharing sensitive data with AI

AI tools help teams move faster, but a single prompt or upload can expose source code, customer data, or credentials. Most security tools can see the app—not what a user is about to send.
Obsidian gives security teams prompt-level visibility and controls in the browser, including for personal AI accounts.

68%
of employees use personal GenAI accounts
Telus
10%
of employee GenAI prompts contain sensitive data
CSO
12K
API keys and passwords found in LLM training data
Hacker News

Stop sensitive data before it leaves the browser

Detect sensitive text in prompts and block it before it is submitted.

Block risky document uploads

Prevent users from uploading files that contain sensitive or classified data.

Apply the same policy to personal AI accounts

Warn or block users even when they sign in with an unmanaged account.

Investigate risky prompts with context

See who submitted the prompt, what triggered the alert, and which AI tool was used.

Trusted by leading enterprise security teams

Frequently asked questions

What is AI prompt security?

AI prompt security prevents sensitive data from being entered into generative AI tools through prompts or file uploads.

Why does it matter?

Without prompt-level controls, employees can accidentally expose confidential data through approved or personal AI accounts.

Do traditional DLP tools protect AI prompts?

Some can block access to AI sites, but many do not inspect the prompt or file at the moment a user submits it.

How does Obsidian protect prompts?

Obsidian inspects prompts and uploads in the browser, then warns or blocks the user based on your policies.

Can it protect personal AI accounts?

Yes. Policies can apply in supported browsers even when the user signs in with a personal account.