Network security

From fundamentals to hands-on

By definition, network security describes the technical and organizational protection of the internal IT infrastructure with all its data, systems, devices, and applications to enable secure digitalization. These security mechanisms not only protect the data center, but also all locations and the cloud itself. Effective network security fends off unauthorized access, data manipulation or data theft with blackmail, system paralysis (DDoS attacks), and other damage caused by hackers, malware, and viruses.

It ensures that data is exchanged confidentially and with integrity and is always available via VPN (Virtual Private Networks) or ZTNA (Zero Trust Network Access). However, secure networks are created primarily through comprehensive information on network security and network protection, as well as targeted measures to enforce cyber protection policies at all levels. The best way to get started right now is with LANCOM insider knowledge on the subject of network security!

Current situation & trends

What does modern and secure IT at the network edge look like?

With secure edge computing, computing power and security applications move directly to where data is generated – at the edge of the network. Local firewalls with industry-specific applications ensure secure, sovereign, and real-time data processing.

Learn more

Feature of the month

Secure admin user management via an identity provider

LMC now supports direct login through your company's identity provider (IdP). After entering their e-mail address in LMC, admin users are automatically redirected to the IdP and authenticated there as part of the existing single sign-on process – without having to re-enter a password in the LMC. This enables all admin user accounts to be managed centrally within a unified identity management system. It also makes onboarding and offboarding new LMC administrators more secure while significantly reducing operational effort. At the same time, it strengthens your company’s long-term security and ensures compliance with key access control regulations, such as required for meeting some of the NIS 2 regulations on network and information security.

The IdP can be configured in LMC via the “Management” menu under the “External admin user management” tab.

Network security for critical infrastructure

 

Cyber protection for critical infrastructure

Municipal companies and critical infrastructure providers are in the midst of digital transformation. They have long recognized the potential of modern digital applications to counter rising costs through more efficient processes.

Find out more now!

 

Find the right firewall

For a secure IT network, your firewall should fit your infra­structure. With a maximum of five questions you can find the best firewall for your use case:

Firewall Matchmaker

Individual advice for your use-case

Questions? Our AI chatbot has the answers!

The LANCOM Digital Assistant is available around the clock to answer your questions about network security, IT security, and the LANCOM R&S®Unified Firewalls.

To the LANCOM Digital Assistant Firewalls


LANCOM security insights

Smart retail needs high network availability and resilience

Are you looking for a branch network that is secure, centrally monitored, and scales reliably with every new store or device—without security gaps and without added effort?

Then it is worth reserving a short time slot for our free deep dive webinar “Scale Smart. Stay Sovereign: Manage Every Store - from One to One Thousand - as if They Were One” on January 27, 2026, from 03:00 to 03:45 p.m.

In this compact online session, we’ll show how the LANCOM Management Cloud simplifies day-to-day retail operations while strengthening network security—practical, hands-on, and ready to implement.

What to expect in the deep dive:

  • Centralized control and full security visibility across thousands of branches
  • Uniform policies for consistent security standards
  • Standardized rollouts including secure base configurations
  • Fewer on-site visits thanks to remote management and fast incident response

Register now

More top topics in network security

Bundled knowledge on the topic of network security

Publications on network security

Enhance your network security expertise anytime with free LANCOM publications:

Go to LANCOM publications

Reference projects on cyber security

Looking for customer experiences or project reports? Find what you need in our reference portal:

Go to the LANCOM reference portal

Always up to date: LANCOM on LinkedIn

Stay informed with exclusive content on network security – regularly posted on our LinkedIn channel:

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Your direct line to us

Most questions can be resolved best in direct contact: We look forward to answering your questions and requests by phone or via the contact form.

Inside Sales International Team
+49 (0)2405 49936 122

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