Information access restriction

Access to information and other associated assets should be restricted in accordance with the established topic-specific policy on access control.

Purpose

To ensure authorized access and prevent unauthorized access to information.

Implementation Guidance

Implement role-based access control

Apply principle of least privilege

Use access control lists (ACLs)

Implement data loss prevention (DLP) where appropriate

Review access permissions regularly

Recommended Tools

Google Workspace

Complete suite including email, calendar, and SSO capabilities. Ideal for startups already using Gmail.

Microsoft 365

Enterprise productivity suite with strong security features and Azure AD integration.

Okta

Enterprise identity and access management platform providing SSO, MFA, and lifecycle management for secure authentication.

JumpCloud

Cloud directory platform combining SSO, MDM, and user management. Great all-in-one solution for startups.

ISO 27001 Services from the Directory

These providers can help you implement A.8.3 and achieve ISO 27001 certification.

Advisera

Provider of ISO 27001 documentation, training, and consultancy services to help businesses achieve compliance.

Anecdotes

Enterprise agentic GRC platform with 230+ integrations and 40+ pre-mapped frameworks for Fortune 500 compliance programs.

Arrow Cyber Advisors

Arrow Cyber Advisors enables organizations to build measurable cybersecurity maturity and resilience. We specialize in governance, risk and compliance advisory, providing clear security direction, maturity benchmarking, and execution support tailored to regulated and high-risk environments.

Atoro

Atoro offers specialized ISO 27001 certification services for SaaS companies, simplifying compliance with expert tools.

AuditBoard

Enterprise connected risk platform trusted by over 50% of the Fortune 500 for audit, risk, and compliance management.

Bitsecura

*** Helping Businesses Achieve Compliance & Certification Success *** Bitsecura is a IT governance, risk, and compliance (GRC) firm specialising in helping organisations protect their critical assets, navigate complex regulatory landscapes, and build sustainable cybersecurity frameworks. With over 20 years of industry experience, we offer strategic guidance, bespoke solutions, and operational support that align seamlessly with your business objectives. Our commitment to practical innovation and long-term partnerships ensures that working with Bitsecura not only strengthens your current security posture, but also builds a lasting foundation for future resilience.

View all ISO 27001 services