Glossary · Identity

What is OAuth Grant (App Consent)?

The permission a user or admin gives an app to reach company data, such as reading every mailbox or every file.

When someone clicks "Allow" on a connected app, that app gets its own access. It keeps working after the person changes their password, which is why attackers like it: a malicious app consent survives a password reset.

Over-powered AI apps rely on the same mechanism. A note-taking or writing tool may ask for far more access than its job needs.

What to review

  • Apps with access to all mailboxes or all files
  • Apps nobody recognises, or that only one person uses
  • Consents granted right after an unusual sign-in

How Centeye handles it

Centeye Gatewatch flags risky app consent, and Centeye Lumen shows which AI apps hold access and what they can reach.

Gatewatch: identity protection (ITDR) →

See one attack, end to end.

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