Zero Trust Architecture
A security model based on the principle of 'never trust, always verify' that requires strict identity verification for every person and device attempting to access resources, regardless of their network location. Zero Trust is increasingly recommended for DORA and NIS2 compliance.
Zero Trust Architecture (ZTA) fundamentally changes the traditional network security approach of 'trust but verify' to 'never trust, always verify.' Instead of relying on network perimeter defenses, Zero Trust assumes that threats exist both inside and outside the network and requires continuous verification of every access request.
Key principles of Zero Trust include verifying explicitly (always authenticate and authorize based on all available data points), using least privilege access (limit user access with just-in-time and just-enough-access), and assuming breach (minimize blast radius and segment access). Implementation typically involves micro-segmentation, identity-centric security, continuous monitoring, and adaptive access policies.
While DORA doesn't explicitly mandate Zero Trust, its requirements for strong access controls, continuous monitoring, and incident detection align closely with Zero Trust principles. Organizations implementing Zero Trust as part of their security strategy will find it easier to meet DORA's ICT risk management requirements. NIS2 similarly benefits from Zero Trust implementation, particularly its requirements for access management and network security.
Related Terms
Access Control
The selective restriction of access to resources, systems, and data based on user identity and authorization. Access control is a fundamental security control required by ISO 27001, SOC 2, DORA, and GDPR to ensure that only authorized personnel can access sensitive information.
MFA (Multi-Factor Authentication)
A security mechanism that requires users to provide two or more verification factors to gain access to a system. MFA significantly reduces the risk of unauthorized access and is recommended or required by DORA, ISO 27001, SOC 2, and GDPR security measures.
DORA (Digital Operational Resilience Act)
An EU regulation that establishes uniform requirements for the security of network and information systems in the financial sector. DORA became mandatory on January 17, 2025, and applies to banks, insurance companies, investment firms, and their critical ICT service providers.
NIS2 (Network and Information Security Directive)
The updated EU directive on cybersecurity that expands the scope of the original NIS Directive to cover more sectors and entities. NIS2 introduces stricter security requirements, incident reporting obligations, and enforcement measures with significant penalties for non-compliance.
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