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Secure network design and encryption measures
Technical cyber security
Network security

Secure network design and encryption measures

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Task description

Secure network design and encryption measures

Ensure secure network architecture and management by implementing access controls that detect and prevent unauthorized devices or systems from connecting to the financial entity’s network.

Network connections must be encrypted across all environments whether corporate, public, domestic, third-party, or wireless using appropriate protocols. This should align with the outcomes of data classification and ICT risk assessments.

Additionally, design the network to meet the financial entity’s ICT security requirements, following leading practices that safeguard confidentiality, integrity, and availability.

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9.3 §: Tietojärjestelmien hankinta ja kehittäminen
Kyberturvallisuuslaki
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Defining standard templates for secure configurations
Configuration management and change log
Critical
High
Normal
Low
Network security
12
requirements

Examples of other requirements this task affects

8.9: Configuration management
ISO 27001
CC7.1: Procedures for monitoring changes to configurations
SOC 2
1.2.4: Definition of responsibilities with service providers
TISAX
PR.IP-3: Configuration change control processes are in place.
CyberFundamentals
DE.CM-7: Monitoring for unauthorized personnel, connections, devices, and software is performed.
CyberFundamentals
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Configuration management and change log
Isolate vulnerable and low-trust equipment
Critical
High
Normal
Low
Network security
1
requirements

Examples of other requirements this task affects

2.5.4: Isolate vulnerable and low-trust equipment
NSM ICT-SP
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Isolate vulnerable and low-trust equipment
Redundancy solutions for networks
Critical
High
Normal
Low
Network security
2
requirements

Examples of other requirements this task affects

5.3.2: Network device requirements
TISAX
PR.IR-04: Resource capacity
NIST 2.0
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Redundancy solutions for networks
Detailed procedures for the management, control and segmentation of networks
Critical
High
Normal
Low
Network security
7
requirements

Examples of other requirements this task affects

5.2.7: Network management
TISAX
14.5.10.b): Prieigos kontrolė
NIS2 Lithuania
PR.IR-01: Unauthorized access to networks and environments
NIST 2.0
Članak 30.1.e: Sigurnost u nabavi, razvoju i održavanju mrežnih i informacijskih sustava
NIS2 Croatia
3.1.8: Säkrade lösningar för kommunikation
NIS2 Sweden
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Detailed procedures for the management, control and segmentation of networks
Järjestelmien koventaminen käytössä olevien palveluiden minimoinnilla
Critical
High
Normal
Low
Network security
2
requirements

Examples of other requirements this task affects

TEK-10.1: Järjestelmäkovennus - käytössä olevien palveluiden minimointi
Julkri
I-08: VÄHIMMÄISTOIMINTOJEN JA VÄHIMPIEN OIKEUKSIEN PERIAATE – JÄRJESTELMÄKOVENNUS
Katakri 2020
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Järjestelmien koventaminen käytössä olevien palveluiden minimoinnilla
Monitoring configurations
Critical
High
Normal
Low
Network security
10
requirements

Examples of other requirements this task affects

8.9: Configuration management
ISO 27001
1.2.4: Definition of responsibilities with service providers
TISAX
DE.CM-7: Monitoring for unauthorized personnel, connections, devices, and software is performed.
CyberFundamentals
2.5.1: Control data flow between network zones
NSM ICT-SP
2.3.5: Verify that activated security configurations comply with the organisation’s approved security configurations
NSM ICT-SP
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Monitoring configurations

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