Knowledge Hub

Read our latest articles about digitalization, IoT, Cloud and Cybersecurity.

What is Firewall as a Service (FWaaS)? A complete overview for companies

What is Firewall as a Service (FWaaS)? A complete overview for companies

Learn how Firewall as a Service (FWaaS) offers scalable, cloud-based security with real-time protection and zero-maintenance updates.

03.06.2026

What is Information Security Management (ISM)?
ZTNA (Zero Trust Network Access) explained: What is the meaning of the new IT security standard

ZTNA explained: What is the meaning of the new IT security standard

In this blog post, we break down how ZTNA enhances security by ensuring that every user and device is continuously verified before accessing your network. Learn how this approach can protect your business from modern cyber threats.

28.05.2026

What is a CASB? The Cloud Access Security Broker explained

What is a CASB? The Cloud Access Security Broker explained

Discover how a Cloud Access Security Broker (CASB) secures your cloud services, providing visibility, threat protection, and compliance management.

26.05.2026

OSI and TCP/IP model: Differences explained

OSI and TCP/IP model: Differences explained

Compare the OSI and TCP/IP models through a clear, modern lens—understand the structural differences between the OSI’s theoretical seven-layer framework and the TCP/IP’s practical four-layer stack, and learn why both matter in real-world networking.

08.07.2025

Further Articles

What is Network as a Service NaaS explained_A1 Digital

What is Network-as-a-Service? NaaS explained

Looking for a flexible and cost-effective networking solution? Discover how Network-as-a-Service (NaaS) is transforming the way businesses manage their networks. Learn how NaaS can simplify operations, reduce costs, and scale your business efficiently in our latest blog post.

06.03.2025

Secure Web Gateway: Why an SWG is essential for safe browsing in the workplace

Secure Web Gateway: Why an SWG is essential for safe browsing in the workplace

Learn how a Secure Web Gateway (SWG) helps protect your business by blocking harmful websites, preventing malware, and ensuring secure web traffic—essential for today’s remote and cloud-driven work environments.

04.04.2025

Why Data Loss Prevention (DLP) is essential for data security

Why Data Loss Prevention (DLP) is essential for data security

Data Loss Prevention (DLP) is essential for safeguarding sensitive company information from unauthorized access or leaks. Learn how DLP works to protect your business from potential data breaches and compliance risks.Data Loss Prevention (DLP) protects sensitive data from loss and unwanted outflow.

08.04.2025

5G: The new mobile network explained_A1 Digital

5G standard: The new mobile network explained

In this blog post, we break down the fundamentals of 5G, the next-generation network technology. Learn how 5G is set to revolutionize connectivity, offering faster speeds, lower latency, and greater capacity to support the growing demands of modern businesses and consumers.

15.07.2024

OPC UA: Open communication for industry

OPC UA: Open communication for industry

Explore how OPC UA (Open Platform Communications Unified Architecture) serves as a universal communication standard in Industry 4.0, enabling seamless, secure, and platform-independent data exchange across diverse industrial systems.

14.05.2025