AI Security · AI Data Security
Employees use AI daily for writing, analysis, and coding. GuardStance AI Data Security discovers every AI tool in use, distinguishes corporate tenants from personal accounts, and masks or blocks sensitive data in prompts and file uploads.
Book a demoWhat the user typed
Draft a payment reminder for Maria Lopez, passport X1234567, IBAN ES00 1234 5678 9012 3456 7890.
What goes to the AI tool
Draft a payment reminder for [NAME], passport [PASSPORT], IBAN [IBAN].
Organizations need to understand which AI tools employees use and where sensitive information may be shared before they can establish effective security policies.
GuardStance AI Data Security focuses on AI usage visibility, sensitive data exposure, and governance. AI Firewall provides inline inspection and enforcement for prompts and responses. Together, these capabilities help security teams understand risky AI activity and apply the right controls.
The AI services in use, by user and device, with corporate or personal account.
Typed prompts, pasted text, and attached files are checked by the Detection Engine before they leave.
Sensitive values become labels, or the prompt stops if the policy says so.
The user sees “This content was not sent” and the reason.
Which AI tools are used, by whom, how often and with which account.
Typed and pasted text is classified before it is sent.
Files attached to a prompt are inspected like any other upload.
Names, IDs and account numbers become labels; the rest goes through.
Different rules for the company’s AI tenant and for personal accounts.
The browser extension covers web AI; the endpoint agent covers desktop AI apps.
No. Blocking AI outright drives employees to unmanaged personal devices. GuardStance lets you allow AI productivity while automatically masking PII, financial data, and secrets in prompts—reserving blocks for critical intellectual property or unapproved personal accounts.
GuardStance detects browser-based LLMs (such as ChatGPT, Claude, Gemini, Perplexity, and DeepSeek), desktop AI apps, and coding assistants (Copilot, Cursor, Claude Code, Codex), while also inspecting AI file uploads in collaboration tools like Teams and Slack.
Start by turning on Shadow AI discovery in monitor mode. Within days, you get a concrete inventory of which AI services are used, by which departments, and what sensitive data is being shared—giving you the evidence needed to set practical masking and blocking rules.
