Free · Chrome & Edge

Your team is pasting customer data into ChatGPT.
And you don’t know it.

coordinat Guard warns you —or blocks it— right before an ID number, an IBAN or a card leaves for a public AI. Detection happens in the browser: no sign-up, and nothing leaves your device.

Install free on Chrome Assess my risk

No card. No account. Installs in one click.

“Shadow AI” is already in your company

Your employees use ChatGPT, Claude or Gemini to move faster — and that’s fine. The problem is what they paste without thinking: contracts, customer data, credentials. Once it’s sent, you no longer control it. It’s a silent data leak, with GDPR exposure.

ID numbers
national IDs with checksum validation
Tax IDs
companies and organizations
IBAN
bank accounts (mod-97)
Cards
card numbers (Luhn)
Emails
email addresses
Keys & tokens
API keys and credentials

How it protects

1
Detects locally

It scans the text in your browser before it’s sent. Nothing leaves your device for that check.

2
Warns, anonymizes or blocks

Depending on how you set it up: it warns you and you decide, replaces the data with labels, or blocks the send.

3
Works in the AI they already use

ChatGPT, Claude, Gemini, Copilot, Perplexity and more. No need to switch tools.

Lead a team? Turn it into real governance

Connect Guard to coordinat.io and go from protecting one browser to governing the whole organization: you set the policy (not each employee), and a dashboard shows you which external AI is used, how much and with what kinds of data — never the content, unless you enable it transparently.

See the platform Try it free
Privacy first. Without connecting an account, Guard sends absolutely nothing to any server. With a corporate account, by default it only logs the tool, the moment and the type of data detected — never the text. Logging the team’s AI use is an admin decision, who must inform their staff (workplace GDPR).

Start protecting your team today

It’s free, installs in one click and works from minute one.

Install coordinat Guard