Glossary

What is shadow IT and how can you stop it?

Published on
September 29, 2025

What is shadow IT and how can you stop it?

Shadow IT refers to any technology—apps, services, devices, or software—that employees use without explicit approval from the IT department. It often emerges when official tools feel slow or lack needed features, prompting staff to turn to familiar alternatives.

Shadow IT illustration

What is shadow IT and why does it happen?

Shadow IT is the use of unauthorized technology within an organization. It happens because employees seek faster, more convenient tools that better fit their workflows, especially in remote or hybrid settings.

Which common tools become shadow IT in organizations?

Typical examples include personal cloud storage (Google Drive, Dropbox), unofficial project‑management apps (Trello, Asana), messaging platforms (WhatsApp, Slack), and personal devices used for work (BYOD). Even unsanctioned browser extensions or trial software can count as shadow IT.

How does shadow IT create security vulnerabilities?

Unauthorized apps often lack enterprise‑grade security controls, making them easy entry points for malware or phishing attacks. They may use weak passwords, skip multi‑factor authentication, and remain unpatched, exposing the network to threats.

What compliance risks are associated with shadow IT?

Data stored in unsanctioned services can bypass compliance checks, jeopardizing regulations such as GDPR, HIPAA, or CCPA. Without centralized oversight, it’s nearly impossible to prove that data handling meets legal standards.

How can shadow IT lead to hidden costs for a business?

Teams often purchase duplicate subscriptions or pay for individual licenses instead of leveraging volume discounts. Untracked services can also incur unexpected storage or premium feature fees, inflating the IT budget.

Why is visibility important when managing shadow IT?

IT cannot protect what it cannot see. Lack of visibility creates blind spots, making it difficult to enforce backups, disaster‑recovery plans, or monitor data flows across the organization.

What steps should IT teams take to audit shadow IT?

Start with network monitoring to discover unknown traffic, then survey employees about the tools they use daily. Treat the audit as a discovery exercise—not a punishment—to understand real needs.

How can a clear shadow IT policy reduce risk?

A concise policy defines what is allowed, outlines the request process for new tools, and states consequences for violations. Communicating it widely ensures everyone knows the rules and the rationale behind them.

What role does employee training play in preventing shadow IT?

Regular training highlights the security and compliance dangers of unsanctioned tools. It also teaches staff how to request approved solutions, turning potential workarounds into formal requests.

How can organizations monitor unauthorized cloud services?

Deploy a Cloud Access Security Broker (CASB) to gain visibility into all cloud usage, enforce data‑security policies, and block risky services in real time.

What is a good way to handle BYOD securely?

Implement a BYOD policy that mandates security controls such as device encryption, mobile‑device‑management (MDM), and strong authentication before corporate data can be accessed.

How can Palisade help detect shadow IT in email?

Palisade’s email security platform scans your outbound traffic to identify all sending services, even those set up without IT’s knowledge. By authenticating every email, it stops phishing attacks and reveals hidden email‑sending tools.

Check your email security score to see how well your organization is protected.

How does integrating a CASB improve shadow IT visibility?

A CASB provides a centralized dashboard that lists every cloud app in use, whether approved or not. It lets you enforce encryption, data‑loss‑prevention, and access policies across all services.

What are the benefits of a controlled sandbox for testing new tools?

A sandbox lets teams trial new software under IT supervision, ensuring security controls are applied before full deployment. It encourages innovation while keeping risk in check.

TL;DR – Quick summary of shadow IT

Shadow IT is the use of unsanctioned technology that can create security gaps, compliance violations, hidden costs, and visibility problems. Mitigate it by auditing tools, establishing clear policies, improving official solutions, training staff, and using tools like CASBs and Palisade’s email security to gain control.

Quick Takeaways

  • Shadow IT includes any unauthorized app, service, or device used for work.
  • It introduces security, compliance, and hidden‑cost risks.
  • Visibility is key—use network monitoring and CASBs.
  • Clear policies and easy request processes reduce shortcuts.
  • Employee training turns good intentions into secure practices.
  • Palisade can uncover hidden email‑sending services and enforce DMARC.
  • Consider a sandbox environment for safe tool experimentation.

FAQs

How do I identify shadow IT tools in my organization?

Start with network traffic analysis, use a CASB, and survey employees about the apps they rely on daily. Combine automated discovery with direct feedback to build a complete inventory.

What are the biggest security threats posed by shadow IT?

Unpatched software, weak authentication, and lack of encryption can expose your network to malware, phishing, and data exfiltration. Unauthorized email services also increase phishing risk.

Can shadow IT affect my compliance audits?

Yes. Data stored in unsanctioned clouds may not meet GDPR, HIPAA, or CCPA requirements, making it difficult to prove compliance during audits.

What steps should I take to create an effective shadow IT policy?

Define allowed tools, outline a simple request workflow, set approval criteria, and communicate the policy widely. Include consequences for violations and regularly review the policy.

How does Palisade’s email security solution help with shadow IT?

Palisade monitors all outbound email traffic, flags unknown sending services, and enforces DMARC to protect your domain. This visibility helps you discover hidden email tools and stop phishing attacks.

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