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Shadow IT: How Employees Using Unauthorized Apps Could Be Putting Your Business At Risk

May 26, 2025

Your employees might pose the greatest cybersecurity risk to your business—not just because they click on phishing emails or reuse passwords, but because they use apps your IT team isn't even aware of.

This phenomenon is known as Shadow IT, and it is one of the fastest-growing security threats facing businesses today. Employees often download and use unauthorized apps, software, and cloud services with good intentions, but in doing so, they unknowingly create significant security vulnerabilities.

What Is Shadow IT?

Shadow IT refers to any technology used within a company that has not been approved, vetted, or secured by the IT department. Examples include:

- Employees using personal Google Drive or Dropbox accounts to store and share work documents.

- Teams signing up for unapproved project management tools like Trello, Asana, or Slack without IT oversight.

- Workers installing messaging apps like WhatsApp or Telegram on company devices to communicate outside official channels.

- Marketing teams using AI content generators or automation tools without verifying their security.

Why Is Shadow IT So Dangerous?

Because IT teams have no visibility or control over these tools, they cannot secure them, exposing the business to various threats:

- Unsecured Data Sharing: Using personal cloud storage, email, or messaging apps can lead to accidental leaks of sensitive information, making it easier for cybercriminals to intercept data.

- No Security Updates: Unlike approved software, unauthorized apps often miss regular security patches, leaving systems vulnerable to attacks.

- Compliance Violations: Businesses subject to regulations like HIPAA, GDPR, or PCI-DSS risk noncompliance, fines, and legal issues when unapproved apps are used.

- Increased Phishing and Malware Risks: Employees may unknowingly download malicious apps that appear legitimate but contain malware or ransomware.

- Account Hijacking: Using unauthorized tools without multifactor authentication can expose employee credentials, allowing hackers to access company systems.

Why Do Employees Use Shadow IT?

Usually, the use of Shadow IT is not malicious. For example, the "Vapor" app scandal revealed how over 300 malicious apps on the Google Play Store were downloaded more than 60 million times. These apps disguised themselves as utilities or lifestyle tools but displayed intrusive ads and, in some cases, phished for credentials and credit card information. They hid their icons and overwhelmed devices with full-screen ads, nearly disabling them. This case shows how easily unauthorized apps can infiltrate devices and compromise security.

Employees also turn to unauthorized apps because:

- They find company-approved tools frustrating or outdated.

- They want to work faster and more efficiently.

- They are unaware of the security risks involved.

- They believe IT approval takes too long and take shortcuts.

Unfortunately, these shortcuts can lead to costly data breaches.

How To Stop Shadow IT Before It Hurts Your Business

You cannot stop what you cannot see, so addressing Shadow IT requires a proactive strategy:

1. Create An Approved Software List

Collaborate with your IT team to develop a list of trusted, secure applications for employees to use. Keep this list updated with new approved tools.

2. Restrict Unauthorized App Downloads

Implement device policies that prevent employees from installing unapproved software on company devices. Require IT approval for any new tools.

3. Educate Employees About The Risks

Train your team regularly to understand that Shadow IT is not just a shortcut but a serious security threat.

4. Monitor Network Traffic For Unapproved Apps

Use network-monitoring tools to detect unauthorized software usage and identify potential security risks early.

5. Implement Strong Endpoint Security

Deploy endpoint detection and response (EDR) solutions to monitor software use, block unauthorized access, and detect suspicious activity in real time.

Don't Let Shadow IT Become A Security Nightmare

The best defense against Shadow IT is to address it proactively before it leads to data breaches or compliance issues.

Want to know what unauthorized apps your employees are using right now? Start with a FREE 15-Minute Discovery Call. We'll identify vulnerabilities, flag security risks and help you lock down your business before it's too late.

Click here or give us a call at 703-879-2070 to schedule your FREE 15-Minute Discovery Call today!