Planning errors often turn out to be particularly serious because they can easily create extensive vulnerabilities. If the use of WLANs is planned insufficiently (or not at all), this may result in a number of issues. For example:

• Confidential data might be intercepted—for example, when using WLAN standards that no longer correspond to the state of the art (e.g. WEP for encryption).
• The available transmission capacity could be insufficient. As a consequence, it will not be possible to use bandwidth-intensive applications with the required service quality.
• WLAN coverage may be insufficient to provide network availability in certain places.

• BSI -

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