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Sofort zur richtigen Weiterbildung

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Kronenstrasse 11
8735 St. Gallenkappel
ExperTeach AG
We support the ICT world with training, certification and consulting services. We offer courses from manufacturers such as Cisco or Trend Micro and in the field of IT management. With our own ExperTeach Networking seminar series, we provide you with technology know-how on all important ICT topics and current industry trends.
Region: Aargau, Basel, Bern, Liechtenstein, Ostschweiz, Tessin, Westschweiz, Zentralschweiz, Zürich
Sites: Zürich, Frankfurt/Dietzenbach, Wien, Düsseldorf, Hamburg, München
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Questions and answers

It is very important to take proactive network security measures to protect a company's network against cyber attacks via WLAN. In many companies, the following network security measures are usually taken:

  • Access controls with identity management
  • VPN technologies (IPSec, L2TP and SSL/TLS)
  • E-mail encryption
  • WLAN security (attacks on WLANs)
  • Perimeter security through hardware or software-based firewall for monitoring incoming and outgoing network data traffic via WLAN

However, it also helps to train staff, raise employee awareness, mobile device management, monitoring, use of technology, analysis and identification of weak points. The use of network security software provides the company with support for the necessary network security measures. If Tor browsers are used for anonymous surfing, Tor network security must also be taken into account.

The network security definition is: Network security is the bundle of strategies, processes and technologies to protect a network from unauthorized access and thus protect it from damage. Typical threats include hackers, malware and viruses. If unauthorized persons gain access to the network, they can infiltrate, manipulate or destroy networks. This is why network security has the following priority (according to the network security definition):

  • Control access
  • Prevent infiltration of the network
  • Preventing the spread of threats

Digitalization is changing the world and the way we live and work. Customers and employees are demanding more digital services from companies. Anyone who provides these and opens up digitally to the outside world must protect their network. For example, home offices and collaboration tools pose risks to networks. This protection is important and also serves the company's reputation.

When you hear the word network security key, you might think it refers to a key that has to be used to unlock the router. However, it is actually a password or a code. This can be used to secure a wireless network. This is used to identify access to the router. Or to put it more simply: without the network key, you cannot connect to the Internet via WLAN. This is because only those with the correct network security key are allowed to access a wireless network. This is important to ensure that no strangers gain access within range of your Wi-Fi connection. Authenticating access using the network key ensures that unauthorized persons cannot use your Internet connection. This is because unauthorized users could spy on users' personal data via Internet access. This is how network security works with a network security key:

  • Select a router that can be reached wirelessly with a computer or smartphone via a WLAN connection
  • Enter the network security key (located behind or under the router)
  • Click on Connect and get access to the Internet
  • by selecting "connect automatically", the key does not have to be entered again the next time it is accessed
  • The network key can also be read when the Internet is connected

There is no generally applicable network security concept. A network security concept is based on the analysis of possible damage and attack scenarios. The level of protection is then defined on this basis. Almost all security concepts in network technology pursue different, sometimes even conflicting objectives. This is why the composition of the techniques, procedures and mechanisms used is always different. The application in the network security concept is based on one of the following protection objectives:

  • Secure data against loss (data security)
  • Secure data against theft (data protection)
  • Secure data against manipulation (data integrity)
  • unauthorized acquisition of information (loss of confidentiality)
  • Unauthorized modification of information (loss of integrity)
  • Unauthorized impairment of functionality (loss of availability)

A network security concept usually combines several protection goals for which there are various technical procedures and standards. The combination of several procedures is also necessary for serious network security. The higher the security requirements, the more complex the network security concept must be to circumvent. Intruders are always using new techniques for their network attacks, so the tools and methods of defense must also evolve. Network security hacks help to make networks more secure with the latest protection technologies. Thanks to network security hacks, network intruders can be detected and tracked. Network security hacks provide information on necessary encryption techniques for data protection and useful traps for future intruders. Only those who are familiar with modern attack techniques can protect themselves with the right network security concept.

Redaktionelle Leitung:

Stefan Schmidlin, Bildungsberatung, Content-Team Modula AG

Quellen

Website des Schweizerischen Sekretariats für Bildung, Forschung und Innovation SBFI , Website www.berufsberatung.ch (offizielles schweizerisches Informationsportal der Studien-, Berufs- und Laufbahnberatung) sowie Websites und anderweitige Informationen der Berufsverbände und Bildungsanbieter.

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