Prompt Privacy Guard

About

Chrome Web Store description

Prompt Privacy Guard helps users avoid accidentally sharing sensitive or confidential information when using generative AI tools.

Employees often use AI assistants to write emails, summarize tickets, troubleshoot errors, analyze logs, draft customer responses, and improve productivity. But prompts can accidentally include customer names, email addresses, phone numbers, account IDs, government identifiers, financial details, API keys, passwords, tokens, internal system names, or other confidential business information.

Prompt Privacy Guard adds a lightweight safety layer inside the browser. It checks prompt text locally before submission, warns users when sensitive information is detected, and helps replace risky details with safe placeholders.

The extension is designed for individuals, IT teams, and small or medium MSPs that want to support responsible AI usage without blocking productivity.

What it does

Prompt Privacy Guard detects when users are working inside supported generative AI prompt interfaces and checks the text they type or paste for sensitive information.

When sensitive data is found, the extension can show a warning and suggest a safer version of the prompt. Instead of sending real personal or confidential data to an AI tool, the user can continue with placeholders such as:

* [Customer Name]
* [Email Address]
* [Phone Number]
* [Government ID]
* [Bank Account Number]
* [API Key]
* [Internal System]
* [Account ID]

Example:

Original prompt:

Write an email to John Smith at [email protected] about account 123456789 being blocked.

Suggested safer prompt:

Write an email to [Customer Name] at [Email Address] about [Account ID] being blocked.

This keeps the user’s intent while reducing the chance of exposing sensitive information.

Why install it

Generative AI tools are useful, but users may not always notice when a prompt contains sensitive data. Prompt Privacy Guard gives users a real-time reminder before information is shared.

Install Prompt Privacy Guard to:

* Reduce accidental exposure of personal or confidential data
* Help employees use AI tools more responsibly
* Coach users at the point of prompt submission
* Support safer GenAI adoption across teams
* Add a simple browser-level protection layer
* Give MSPs and IT admins a practical control for managed environments
* Avoid blocking AI tools completely while still reducing risk

Protection modes

Prompt Privacy Guard supports two operating modes.

Passive Mode
The extension warns users when sensitive information is detected, but it does not stop the prompt from being submitted. This is useful for awareness, coaching, and gradual rollout.

Active Mode
The extension stops risky prompts before they are submitted and shows safer alternatives. This is useful when teams want stronger protection against accidental disclosure.

For managed environments, admins can choose the default mode and decide whether users are allowed to change it.

Offline and private by design

Prompt Privacy Guard is designed to work locally in the browser.

The extension:

* Does not send prompts to any server
* Does not store prompt content
* Does not collect browsing history
* Does not use analytics or telemetry
* Does not sell or share user data
* Does not use external AI services
* Does not train models on user content

Prompt scanning and redaction happen on the user’s device.

Sensitive information it can help detect

Prompt Privacy Guard can identify common sensitive data patterns, including:

* Email addresses
* Phone numbers
* Government IDs
* Tax IDs
* Passport-like identifiers
* Bank account numbers
* Payment card numbers
* API keys
* Passwords
* Secrets
* Tokens
* Private keys
* IP addresses
* Internal system references
* Custom sensitive terms

Detection is based on local rules and patterns. Accuracy may vary depending on the text, format, and context.

Built for MSP and IT-managed environments

Prompt Privacy Guard is especially useful for small and medium MSPs and IT teams that manage browser installations for end users.

Admins can use it to:

* Promote safer AI usage
* Choose Passive or Active protection
* Configure custom sensitive terms
* Reduce risk without fully blocking AI tools
* Support responsible AI adoption for customer-facing teams

Important note

Prompt Privacy Guard is a lightweight prompt-safety assistant. It helps reduce accidental data exposure, but it is not a full enterprise DLP, CASB, browser isolation, or compliance monitoring solution.

Users should still follow their organization’s security, privacy, and acceptable-use policies when using generative AI tools.