# What is Shadow IT?

> Shadow IT is technology used inside an organization without the knowledge, approval, or governance of the IT or security organization — unapproved SaaS, personal cloud storage, unsanctioned tools, and unregistered systems.

- Canonical URL: https://yellowcube.eu/glossary/shadow-it/
- Publisher: Yellow Cube
- Language: en
- Contact: hello@yellowcube.eu

## Content

Employees adopt shadow IT to work faster: a file-sharing service for a large transfer, a SaaS tool for a project, a personal device for convenience. Each instance adds an unmanaged place where corporate data, credentials, and connections live outside every inventory, policy, and control the security team maintains.

### Key points

- **Discovery before judgment:** Discover shadow IT through CASB-style discovery, expense and SSO logs, and network telemetry — then assess what data and access each service actually touches.
- **Sanctioned alternatives:** Users adopt workarounds when official tools fail them; sanctioned alternatives and a fast approval route work better than prohibition alone, which drives usage deeper underground.
- **Important limitation:** Shadow IT is a governance gap, not inherently malicious intent. Blocking it without addressing the underlying need produces worse hidden behavior — and some “discovered” services turn out to be legitimately necessary.

### Related terms

[Shadow AI](<https://yellowcube.eu/glossary/shadow-ai/>) · [Data exfiltration](<https://yellowcube.eu/glossary/data-exfiltration/>) · [Data governance](<https://yellowcube.eu/glossary/data-governance/>) · [Cloud access security broker (CASB)](<https://yellowcube.eu/glossary/cloud-access-security-broker/>) · [Insider risk management](<https://yellowcube.eu/glossary/insider-risk-management/>)

### Sources

[NIST Cybersecurity Framework 2.0](https://www.nist.gov/cyberframework) · [CSA, Cloud Controls Matrix](https://cloudsecurityalliance.org/research/cloud-controls-matrix)

## Attribution and scope

This Markdown representation is generated from the same approved content records as the canonical HTML page. Cite the canonical URL above when referencing this material. Product and service descriptions are informational; confirm project-specific requirements with Yellow Cube.