Security Architecture: The technical core of a resilient IT.

A well-thought-out security architecture forms the basis of a modern IT security approach. It defines how technical safeguards are systematically integrated into an IT landscape in order to minimise risks, achieve security objectives and fulfil regulatory requirements.

Alongside technical implementation, the strategic foundation is equally important: governance, risk and compliance (GRC) form an overarching framework that enables the management, monitoring and alignment of all security activities. It is only through the combination of organisational structures that a sustainable security architecture can emerge.

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At Bechtle, security architecture involves the practical implementation of security strategies, covering everything from networks and endpoints to applications and the cloud. This technical foundation is complemented by overarching governance structures, zero trust concepts, and continuously evolving policies. Together, these elements create a robust security level that seamlessly connects technology and organisation.

Benefits of a holistic security architecture at a glance:

Comprehensive protection for network, cloud and endpoints

Reduced attack surfaces through clear structures

Rapid response to security incidents

Reliable compliance with requirements such as NIS2 and CRA

Technological security – holistically conceived.

Security architecture encompasses more than just technology, but cannot exist without it. The following key building blocks are in focus, for which Bechtle offers various solutions:

Zero Trust.

Zero Trust is based on the principle that no user, device or service can be trusted by default, whether inside or outside the network. Every access is continuously verified, authenticated and authorised. The aim is to minimise attack surfaces, increase visibility, and implement compliance requirements holistically. Germany's Federal Office for Information Security (BSI) designates Zero Trust as a central future model for IT security architectures and calls for its consistent implementation at all levels: identities, devices, applications, data and networks.¹

Zero Trust is a principle, not a product: 'Never trust, always verify'.

What Zero Trust means in practice

Zero Trust requires a change in mindset: instead of a central perimeter defence, the focus is on the consistent verification of every single access. This includes identity and device checks, encrypted communication, role-based access concepts and continuous evaluation of context and risk. Zero Trust strengthens cyber resilience and creates the foundation for secure hybrid and cloud-based working environments.

Micro-segmentation.

Networks are divided into smaller, isolated segments. This prevents the spread of threats and strengthens internal security controls. Access between segments is only permitted according to clearly defined rules. This enables granular control and increases resilience against lateral attacker movements.

Cloud Security Architecture.

Modern infrastructures are hybrid. A cloud security architecture ensures the protection of public, private and hybrid cloud environments. This also includes managing security risks and implementing Cloud Security Posture Management (CSPM).

Why micro-segmentation is more than just network partitioning.

Micro-segmentation not only creates additional barriers in the network, but also enables the enforcement of context-based access controls. Applications, users or systems only receive exactly the permissions they really need. This helps to contain security incidents at an early stage while improving transparency of communication flows – a key building block of any modern security architecture.

Technological core elements of security architecture.

An effective security architecture is based not only on principles but also on clearly defined technological components. These elements interact to secure IT systems holistically – from networks and endpoints to applications, identities and data.

Network Security.

Firewalls, NAC, IDS/IPS, VPNs and NDR solutions protect networks from unauthorised access and data loss. The objective is to ensure integrity, confidentiality and availability.

Endpoint Security.

Endpoint Protection Platforms, EDR, DLP and MDM protect endpoints against cyber threats. This ensures that data and applications remain secure, even for mobile or remote access.

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Application Security.

CASB, WAF and DLP secure applications during use. The aim is to guarantee data integrity, user privacy and system stability. Secure software development is also a key element and is explored in more detail on the 'Secure Software Development' page.

Identity and Access Management (IAM).

Access control, authentication, identity security, rights management and privileged access management ensure that only authorised individuals gain access to resources. IAM prevents data misuse and supports compliance.

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Encryption & Key Management.

Encryption protects sensitive data in transit and at rest. The management of cryptographic keys through PKI, CA and certificates ensures confidentiality and integrity are maintained.

Backup & Data Protection.

Backup strategies, disaster recovery and immutable backup prevent data loss caused by attacks, system failures or errors. They enable rapid recovery and safeguard business continuity.

Strategic foundation: Governance, Risk and Compliance.

GRC forms the strategic basis of any security architecture. It defines the 'why' and 'what' before technical implementation – the 'how' – begins. GRC ensures clear alignment, management and monitoring of all security activities and is therefore essential for any sustainable security architecture.

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Platform providers at a glance.

Bechtle relies on a wide range of technology partnerships with leading platform providers, including Microsoft, Cisco, Fortinet, Palo Alto, Trend Micro and Check Point. These partnerships enable the implementation of tailored security architectures on a reliable technological basis, aligned with specific requirements and existing infrastructures.

Further resources.

Find out how B-Hard can provide a stable foundation for your IT security with modern hardware security solutions, from endpoints to data centers.

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Early attack detection and automated response: discover how the Bechtle Cyber Defence Centre protects your systems around the clock.

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NIS2 is coming. Read what the EU directive means for your company – and how you can take concrete action now.
Learn more

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Would you like to learn more about IT security architecture or do you have a specific project in mind? Get in touch with us today.

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https://www.bsi.bund.de/SharedDocs/Downloads/DE/BSI/Publikationen/TechnischeLeitlinien/Zero-Trust/Zero-Trust_04072023.pdf?__blob=publicationFile&v=4