Clock synchronization
The clocks of information processing systems used by the organization should be synchronized to approved time sources.
Purpose
To ensure accuracy of logs and support forensic investigation and audit.
Implementation Guidance
Configure all systems to use NTP
Synchronize to authoritative time sources
Monitor time synchronization status
Document time source configuration
Ensure time stamps are included in logs
Recommended Tools
AWS CloudTrail
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Wazuh
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Notion
All-in-one workspace for documentation, policies, and knowledge management. Perfect for startups to manage all ISO 27001 documentation.
ISO 27001 Services from the Directory
These providers can help you implement A.8.17 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.
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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 Technological Controls
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