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Least Privilege Policy

Document ID: LPP-001
Version: 1.0
Effective Date: ____________________
Approved By: ____________________
Last Review Date: ____________________
Next Review Date: ____________________

1. Purpose

The purpose of this Least Privilege Policy is to ensure that users, systems, applications, and services are granted only the minimum level of access necessary to perform authorized business functions.

Applying the principle of least privilege reduces the organization’s attack surface, limits the impact of compromised accounts, prevents unauthorized access to sensitive information, and supports compliance with legal, regulatory, and contractual requirements.

2. Scope

This policy applies to:

  • Employees
  • Contractors
  • Consultants
  • Temporary workers
  • Interns
  • Vendors
  • Third-party service providers
  • Managed Service Providers (MSPs)
  • Automated processes
  • Service accounts
  • Applications
  • APIs
  • Devices
  • Cloud services
  • On-premises systems

This policy applies to access involving:

  • Information systems
  • Networks
  • Databases
  • Applications
  • Cloud platforms
  • File storage
  • Email systems
  • Administrative interfaces
  • Physical security systems

3. Policy Statement

All users, systems, applications, and service accounts shall operate with the minimum permissions required to perform authorized functions.

Access shall not be granted based on convenience, anticipated future needs, or individual preference.

Additional privileges shall be granted only after appropriate approval, documented business justification, and periodic review.

4. Guiding Principles

The organization follows these core principles:

  • Least Privilege
  • Need-to-Know
  • Default Deny
  • Zero Trust
  • Separation of Duties
  • Just Enough Access (JEA)
  • Just-in-Time (JIT) Access where supported
  • Continuous Verification

5. Access Assignment

Privileges shall be assigned according to:

  • Business responsibilities
  • Approved job role
  • Required business functions
  • Data sensitivity
  • Risk level
  • Regulatory requirements

Access shall be approved before being granted.

6. User Access

Users shall receive only those permissions necessary to:

  • Perform assigned duties
  • Access approved business applications
  • Access approved files
  • Access approved systems
  • Perform authorized business transactions

Users shall not receive administrative privileges unless specifically approved.

7. Administrative Privileges

Administrative privileges shall be limited to authorized personnel with a documented business need.

Administrative accounts shall:

  • Be separately assigned from standard user accounts
  • Use Multi-Factor Authentication (MFA)
  • Be monitored
  • Be regularly reviewed
  • Be removed when no longer required

Administrative accounts shall not be used for routine activities such as:

  • Email
  • Internet browsing
  • Office productivity applications
  • Collaboration platforms

8. Privileged Access Management

Where feasible, privileged access should incorporate:

  • Just-in-Time (JIT) elevation
  • Approval workflows
  • Time-limited permissions
  • Session monitoring
  • Session recording where appropriate
  • Automatic privilege expiration

9. Service Accounts

Service accounts shall:

  • Have documented owners
  • Have documented business purposes
  • Operate with minimum permissions
  • Use strong authentication methods
  • Avoid interactive logins unless required
  • Be periodically reviewed

Shared service accounts should be avoided whenever technically feasible.

10. Application Permissions

Applications shall:

  • Operate using dedicated service identities
  • Receive only required permissions
  • Avoid unnecessary administrative rights
  • Restrict access to approved resources
  • Be reviewed after significant updates

11. Database Access

Database permissions shall follow least privilege by limiting:

  • Read access
  • Write access
  • Delete permissions
  • Administrative functions
  • Schema modifications
  • Backup permissions

Access shall be granted according to business responsibilities.

12. Network Access

Network permissions shall be restricted based on:

  • Job role
  • Device trust
  • Geographic location
  • Security posture
  • Business function

Network segmentation should be used where appropriate to limit unnecessary access.

13. Cloud Access

Cloud resources shall implement least privilege by limiting access to:

  • Administrative portals
  • Storage services
  • Compute resources
  • Identity services
  • Security tools
  • Billing functions

Cloud administrator privileges shall be assigned only when required.

14. Third-Party Access

Third parties shall receive only the minimum access necessary to fulfill contractual obligations.

Third-party access shall:

  • Be documented
  • Be approved
  • Have defined expiration dates
  • Be periodically reviewed
  • Be revoked promptly when no longer required

15. Temporary Elevated Access

Temporary elevated privileges shall:

  • Have documented business justification
  • Receive appropriate approval
  • Have defined expiration dates
  • Be automatically removed whenever possible
  • Be logged and monitored

16. Access Reviews

Managers and system owners shall periodically review permissions to ensure:

  • Access remains necessary
  • Excessive permissions are removed
  • Dormant accounts are identified
  • Privileged accounts remain justified
  • Service account permissions remain appropriate

Access reviews should occur:

  • At least annually
  • Following personnel changes
  • After security incidents
  • Prior to major audits

Higher-risk systems may require more frequent reviews.

17. Privilege Reduction

Privileges shall be removed promptly when:

  • Employment ends
  • Job responsibilities change
  • Projects conclude
  • Vendor contracts expire
  • Temporary access expires
  • Business needs no longer exist

Privilege removal should occur as quickly as operationally feasible.

18. Monitoring

The organization shall monitor privileged activities where technically feasible.

Monitoring may include:

  • Administrative logins
  • Permission changes
  • Role assignments
  • Failed privilege escalation attempts
  • Configuration changes
  • Security policy modifications
  • High-risk administrative actions

Logs shall be protected against unauthorized alteration.

19. Exception Management

Exceptions to least privilege shall:

  • Be documented
  • Include business justification
  • Undergo risk assessment
  • Receive management approval
  • Include compensating controls where appropriate
  • Have defined review and expiration dates

Exceptions shall be reviewed periodically.

20. Responsibilities

Executive Management

  • Support implementation of least privilege
  • Approve governance requirements
  • Allocate appropriate resources

Managers

  • Approve access requests
  • Validate business need
  • Participate in periodic access reviews
  • Notify IT of role changes

Human Resources

  • Notify IT of hires, transfers, leaves, and terminations
  • Support timely onboarding and offboarding

IT Department

  • Implement least privilege controls
  • Configure access permissions
  • Remove unnecessary privileges
  • Conduct access reviews
  • Monitor privileged accounts

Information Security

  • Define least privilege standards
  • Review exceptions
  • Monitor privileged access
  • Investigate unauthorized privilege escalation
  • Assess compliance with this policy

Employees and Users

  • Use only authorized privileges
  • Request additional access only when required
  • Protect authentication credentials
  • Report suspected unauthorized access or excessive permissions

21. Compliance

Compliance with this policy is mandatory.

Violations may result in:

  • Removal of privileges
  • Access suspension
  • Disciplinary action
  • Contract termination
  • Legal action where applicable

22. Policy Review

This policy shall be reviewed at least annually or whenever significant changes occur, including:

  • Organizational restructuring
  • Technology changes
  • Regulatory updates
  • Security incidents
  • Audit findings

23. Related Policies

  • Information Security Policy
  • Access Control Policy
  • Identity and Authentication Policy
  • Password Policy
  • Multi-Factor Authentication (MFA) Policy
  • Privileged Access Management (PAM) Policy
  • Joiner, Mover, Leaver (JML) Policy
  • Remote Access Policy
  • Third-Party Risk Management Policy
  • Logging and Monitoring Policy
  • Change Management Policy
  • Data Classification Policy

Document Objective

This policy establishes the organization’s requirements for implementing the Principle of Least Privilege across users, systems, applications, service accounts, cloud environments, and administrative functions. It is intended to reduce security risk, support Zero Trust architecture, strengthen operational controls, and provide a vendor-neutral foundation that aligns with common security frameworks such as NIST CSF, ISO/IEC 27001, CIS Controls, SOC 2, HIPAA, PCI DSS, CMMC, and the FTC Safeguards Rule.