Classification of information
Information should be classified according to the information security needs of the organization based on confidentiality, integrity and availability.
Purpose
To ensure that information receives an appropriate level of protection in accordance with its importance to the organization.
Implementation Guidance
Define classification levels (e.g., Public, Internal, Confidential, Restricted)
Create classification criteria based on CIA requirements
Define handling requirements for each classification level
Train personnel on classification and handling requirements
Review classifications regularly as information sensitivity changes
Recommended Tools
Notion
All-in-one workspace for documentation, policies, and knowledge management. Perfect for startups to manage all ISO 27001 documentation.
Confluence
Enterprise-grade documentation and collaboration platform by Atlassian. Integrates well with Jira for larger organizations.
Google Docs
Simple document collaboration tool that most teams already use. Good for basic policy management.
ISO 27001 Services from the Directory
These providers can help you implement A.5.12 and achieve ISO 27001 certification.
360 Advanced
US CPA and compliance assessment firm for SOC 1/2, ISO 27001, HITRUST, HIPAA, and PCI with hands-on mid-market delivery.

6clicks
Cyber GRC platform with a strong US presence for risk, compliance, and third-party assessments.
A-LIGN
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AdaptiveGRC
Polish GRC software platform for integrated risk, compliance, audit, and information security management including ISO 27001 programs.

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

AENOR
Leading Spanish certification body for ISO 27001, ENS (Spanish National Security Scheme), and multi-standard management systems.
Related Controls
Other controls in Organizational Controls
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