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Why running your computer as an admin is a security risk (and how to fix it)

User logging into tablet with login form

The convenience of having administrator privileges on your work device might be tempting, but it’s one of the most common security vulnerabilities in modern organisations. Here’s why it matters for your business’s security and compliance.

The hidden dangers of admin access

When you log into your computer with an administrator account for daily tasks, you’re essentially giving every application and website you interact with the potential for unlimited access to your system. It’s like leaving your front door key under the doormat – convenient, but incredibly risky.

Compliance and regulatory requirements

In the UK, running with admin privileges violates several security frameworks:

  • Cyber Essentials requires the principle of least privilege, specifically mandating that users only operate with the minimum privileges necessary for their role
  • ISO 27001 (A.9.4.4) demands strict control over privileged access rights
  • NIS Regulations require robust access control measures for critical systems

The solution: privileged access management

Modern privileged endpoint and device management (PEDM) solutions like Heimdal offer a sophisticated approach to this challenge. Here’s how we implement this for our clients:

  1. Automated privilege elevation when needed, without compromising security
  2. Application control that ensures only trusted software can run with elevated privileges
  3. Detailed audit logs of all privileged activities for compliance reporting
  4. Zero-trust architecture that validates every privilege request

Best practices for implementation

  • Create a standard user account for daily tasks
  • Maintain a separate administrator account for system changes
  • Use PEDM tools to manage privilege elevation requests
  • Implement application control to prevent unauthorised software execution
  • Regular audit and review of privileged access patterns
Kevin Walker, Founder of Black Swan Cyber Security Solutions

Written by: Kevin Walker

Founder, Black Swan Cyber Security Solutions

Based in Chesterfield, Kevin has over 20 years’ experience helping schools, care providers and small businesses meet DfE and Cyber Essentials standards. He’s passionate about calm, compliance-led cyber security and supporting local communities across Derbyshire and South Yorkshire.

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