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NSM ICT Security Principles (Norway)
3.2.6: Prevent manipulation of monitoring-data

Requirement description

Prevent manipulation of monitoring-data. a) Archive and sign logs digitally at regular intervals to ensure log integrity. b) Ensure sufficient access control for logs and implement functionality to detect attempted manipulation or deletion of logs. c) Ensure that all components are synchronised with a single time source. d) Gather and consolidate relevant monitoring-data and make available for analysis (see principle 3.3 – Analyse data from security monitoring).

How to fill the requirement

NSM ICT Security Principles (Norway)

3.2.6: Prevent manipulation of monitoring-data

Task name
Priority
Status
Theme
Policy
Other requirements
Deployment and regular analysis of security system logs
Critical
High
Normal
Low
Fully done
Mostly done
Partly done
Not done
Technical cyber security
Security systems and logging
26
requirements

Examples of other requirements this task affects

9.1.2: Access to networks and network services
ISO 27001
12.4.1: Event logging
ISO 27001
PR.PT-1: Audit/log records
NIST
RS.AN-1: Notifications from detection systems
NIST
8.15: Logging
ISO 27001
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Deployment and regular analysis of security system logs
1. Task description

Security systems (e.g. firewall, malware protection) often have the ability to record a log of events. At regular intervals, make sure that a comprehensive log is accumulated and try to identify suspicious activity. The log is also useful in investigating disturbances or violations.

Protecting log information
Critical
High
Normal
Low
Fully done
Mostly done
Partly done
Not done
Technical cyber security
Security systems and logging
13
requirements

Examples of other requirements this task affects

12.4.2: Protection of log information
ISO 27001
6.6.1: Tietoturvan ja tietosuojan seuranta ja valvonta
Omavalvontasuunnitelma
TEK-12: Turvallisuuteen liittyvien tapahtumien jäljitettävyys
Julkri
8.15: Logging
ISO 27001
3.2.1: Determine a strategy and guidelines for security monitoring
NSM ICT-SP
See all related requirements and other information from tasks own page.
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Protecting log information
1. Task description

The logs are protected from unauthorized changes to the data and from malfunctions, which are e.g.:

  • changes to the message types that can be saved
  • editing or deleting log information
  • exceeding log storage capacity, which can result in transactions being overwritten or not logged
Clock synchronization
Critical
High
Normal
Low
Fully done
Mostly done
Partly done
Not done
Technical cyber security
Security systems and logging
7
requirements

Examples of other requirements this task affects

12.4.4: Clock synchronisation
ISO 27001
8.17: Clock synchronization
ISO 27001
PR.PT-1: Audit/log records are determined, documented, implemented, and reviewed in accordance with policy.
CyberFundamentals
2.3.9: Synchronize time across devices and use trusted time sources
NSM ICT-SP
3.2.6: Prevent manipulation of monitoring-data
NSM ICT-SP
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Clock synchronization
1. Task description

Synchronizing clocks between different systems allows for good interoperability, as well as easier tracking of problem situations and perception of event flows.

An organization must use a reliable source to adjust and synchronize time, at least for systems that are critical to its operations. When suitable organization should use two sources.

Archiving and signing logs at regular intervals
Critical
High
Normal
Low
Fully done
Mostly done
Partly done
Not done
Technical cyber security
Security systems and logging
1
requirements

Examples of other requirements this task affects

3.2.6: Prevent manipulation of monitoring-data
NSM ICT-SP
See all related requirements and other information from tasks own page.
Go to >
Archiving and signing logs at regular intervals
1. Task description

Archive and sign logs digitally at regular intervals to ensure log integrity.

Tasks included in the policy

Task name
Priority
Status
Theme
Policy
Other requirements
No items found.

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38: Kiberuzbrukumu attiecināšana
NIS2 Latvia
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