In many organizations, granting local administrator rights to employees may seem convenient: faster software installations, fewer IT requests, and reduced downtime.
In reality, this is one of the most common and dangerous security weaknesses we see during cybersecurity incidents.

At CertiNET, we strongly recommend removing local admin rights from standard user workstations. Here’s why.

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What Is a Local Administrator?

A local administrator has full control over a workstation, including the ability to:

• Install or remove software
• Modify system and security settings
• Disable antivirus or EDR solutions
• Access all local files on the device

If that user account is compromised, an attacker gains the exact same level of control, which creates a serious risk for the entire business.

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1⃣ A Major Risk During Cyberattacks

Most modern attacks start with:

• Phishing emails
• Malicious links
• Infected attachments

If the user is a local administrator, malware can:

• Install itself without restriction
• Persist on the system
• Disable security protections
• Encrypt files (ransomware)

A single click can escalate into a company-wide security incident.

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2⃣ Makes Lateral Movement Inside the Network Easier

A compromised workstation with elevated privileges allows attackers to:

• Harvest credentials
• Move laterally to other computers
• Access servers or domain controllers

This is why attackers specifically target devices with local administrator rights.

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3⃣ Violates the Principle of Least Privilege

The Principle of Least Privilege is a core cybersecurity best practice:

users should only have the access required to perform their job—nothing more.

This principle:

• Reduces the attack surface
• Limits the impact of breaches
• Improves governance and compliance

Most employees do not need local admin rights to:

• Use Microsoft 365
• Work with line-of-business applications
• Browse the internet or send emails

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4⃣ More Stability, Fewer IT Issues

When users can freely modify their computers, organizations experience:

• Inconsistent configurations
• Unauthorized software installations
• Application conflicts
• Longer troubleshooting times

Removing local admin rights results in: More stable workstations
Fewer incidents
Better overall IT control

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5⃣ “But How Do We Install Software?”

Good news: removing local admin rights does not hurt productivity.

Modern best practices include:

• Dedicated IT administrator accounts
• Controlled or temporary privilege elevation
• Centralized management tools (MDM, RMM)
• On-demand approvals when required

Employees stay productive without exposing the organization to unnecessary risks.

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In Summary

Granting local administrator rights to users: Significantly increases cybersecurity risks
Enables ransomware and lateral attacks
Complicates IT management

Removing them: Strengthens overall security
Reduces incident impact
Aligns with cybersecurity best practices

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Need Help Securing Your Endpoints?

At CertiNET, we help businesses:

• Secure workstations and endpoints
• Apply least privilege principles
• Protect data against ransomware and cyber threats

Contact us to evaluate and secure your IT environment.