Is Your Google Workspace
Leaking Data?
Every time an employee installs a free browser extension or third-party Marketplace add-on, they may be granting external vendors full read/write access to your company's Google Drive files and financial ledgers.
The 4 Security Hazards of Third-Party SaaS Add-ons.
1. Over-Privileged OAuth Scopes
Many Marketplace add-ons request blanket access (drive.readonly or gmail.modify), granting unknown developers permission to scan every folder in your company Drive.
2. External Database Replication
Third-party no-code tools routinely copy your customer records and spreadsheet data onto their external cloud servers, creating unaccounted GDPR compliance vulnerabilities.
3. Offboarding Security Gaps
When a staff member departs, deactivating their Google account does not automatically revoke API tokens issued to personal third-party web apps unless audited centrally.
4. Supply Chain Vulnerability
If a small add-on developer suffers a security breach or sells their Chrome extension, malicious code can be pushed directly into your staff's browser context.
How to Run a 5-Minute Google Workspace Security Audit
Open Admin Console
Log in to admin.google.com as a Workspace Super Admin.
Navigate to API Controls
Go to Security > Access and data control > API controls and click Manage Third-Party App Access.
Review & Revoke
Filter apps by high-risk access (e.g. Drive/Gmail) and change unauthorized add-ons to Blocked.
Why Native Apps Script Keeps Data 100% Internal.
Unlike external SaaS platforms, custom Google Apps Script developed specifically for your domain runs serverlessly inside your existing Google Cloud tenant. No data ever leaves your company domain, zero third-party databases are involved, and user access is controlled 100% by your Google Workspace SSO.