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A concrete approach to security

Zero Trust Network Access (ZTNA) is a modern security solution that offers a particularly robust and advanced security architecture as part of Secure Service Edge (SSE). In the ZTNA approach, access is regulated precisely and on an application-specific basis.

Comprehensive security in a modern decentralised corporate network.

A concrete approach to security

Our ZTNA solutions use real-time information such as user identity, location, device, time of day and confidentiality level to perform continuous risk assessment and control access accordingly. This enables dynamic adjustment of access rights and granular control over every access attempt.

Another key strength of Zero Trust lies in minimising potential attack surfaces, which significantly improves the security of your networks. By reducing the attack surface, we minimise the risk of successful attacks. Fewer potential vulnerabilities mean a more robust Zero Trust architecture for your business – with a proactive approach that significantly reduces the risk of attacks and data loss.

Use cases for Zero Trust

Remote working

Secure connection for home offices and mobile working

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Cloud access

Secure use of cloud-based services

Onboarding external staff

Secure access for suppliers, contractors and partners

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OT / IoT

Secure connection of networked machines and IoT sensors

Our principles and their implementation

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Continuous monitoring through contextualisation

In the world of network security, the idea of controlling every single data access has been discussed for 20 years. Today, we finally have the technologies and computing power to put this vision into practice. Contextualisation plays a crucial role in the Zero Trust model. This means that access permissions are dynamically assigned based on various contextual information such as user identity, device type, application and location. The policy engine enables dynamic and granular access control, increasing the level of security and preventing unauthorised access – even when users are already on the network.

Reduce areas of vulnerability

One of the key mechanisms of Zero Trust is the proactive reduction of potential attack surfaces. By strictly limiting permissions and applying the Zero Trust principle of least privilege, users are only granted the access rights they immediately need. This minimises the risk of misuse or accidental access. Even if an account is hacked, the potential for damage is greatly limited because access to sensitive resources is restricted. Network segmentation is another key concept. This involves dividing networks into isolated segments and severely restricting data traffic between them. This micro-segmentation significantly reduces the attack surface and isolates resources. This allows access rules to be precisely defined and the risk of unauthorised access to be minimised. These measures not only increase security, but also improve visibility and control over data traffic. Learn more about how we can take your network security to a new level with Zero Trust.

Respond automatically

The automation and orchestration of security measures are crucial in Zero Trust threat defence in order to respond quickly to incidents and effectively enforce security policies. With a SOAR (Security Orchestration, Automation and Response) system, we can seamlessly integrate your security solutions and support the entire lifecycle of a security incident – from detection and investigation to response and recovery. Everything comes together in the Security Operations Centre (SOC), where specialists monitor IT security around the clock. SOAR automates security tasks and processes to reduce human intervention and shorten response times. It enables the automatic detection and escalation of security incidents and the use of predefined measures for rapid response.

Advice – personalised and tailored to your needs

Do you have any questions? Simply fill out the contact form and we will get back to you as soon as possible.

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Further information

White paper – Security architecture for a new digital age

Successful digital transformation also means transforming the security architecture. The white paper highlights the principles that should be taken into account when restructuring the security infrastructure and the opportunities and advantages that this offers. The buzzword "zero trust" is defined and explained in more detail. Finally, an example is used to illustrate what holistic security can look like in a modern, decentralised corporate network.

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Our awards

  • Telekom comes out on top in connect mobile network test
  • Siegel-connect landline test winner 2025 Telekom
  • Gold Partner Microsoft
  • Cisco Gold Partner
  • Zoom Gold Partner