WLAN Book

‘Evil Twin’ Wi-Fi Access Points Proliferate

An evil twin access point as described in a Network World article is a
Wi-Fi access point that appears to be a legitimate one offered on the premises, but actually has been set up by a hacker to eavesdrop on wireless communications among Internet surfers.
In reality, if the goal is to just eavesdrop, then the [...]

Filed under: WLAN Security

Linux Wireless LAN Support

If you have ever struggled to get a wireless card working with Linux then the Wireless Adapter Chipset Directory compiled by HJ Heins is a good site to bookmark.
The site maintainer’s own words below.
This is an attempt to create a, more or less complete listing of wireless devices with information about the chipset they are [...]

Filed under: How To Guides

Organizations Fail To Enforce Wireless LAN Security Policy

Infosecurity Europe surveyed 320 companies and found that over one-fourth (26 percent) of organizations do not enforce a wireless security policy.
They also conducted in-depth interviews with 20 large-enterprise chief security officers (CSOs) and found that CSOs are more concerned about the dangers from user access to insecure wireless networks outside the office than company wireless [...]

Filed under: WLAN Security

Wireless Network Performance – Channel Planning

An important component of wireless network performance optimization is channel planning.
IEEE defines 14 channels available for use in 802.11b and 802.11g wireless networks. In the US and Canada the available channels for use are 1 (2.401 GHz) through 11 (2.448 GHz). Outside the US channels 13 and 14 are also available for use. Each of [...]

Filed under: WLAN Design

Breaking 104 Bit WEP In Less Than 60 Seconds

“Breaking 104 bit WEP in less than 60 seconds” is the title of a paper by Erik Tews, Andrei Pychkine and Ralf-Philipp Weinmann, three cryptographic researchers at the cryptography and computer algebra group at the technical university Darmstadt in Germany.
For those new to wireless LAN security and WEP cracking, WEP’s weaknesses have been known since [...]

Filed under: WLAN Security

How NOT To Increase Your Wi-Fi Signal

I found an excellent video that provides ZERO guidance on how to increase your Wi-Fi signal.

Above is a satirical video by Mark Erickson. Mark has several other “tutorials” with the same level of quality information.
You should also read the mail Mark gets regarding his tutorials.

Filed under: How To Guides

Rogue Wireless Station

A rogue wireless station is an unauthorized station connected to a network via an access point. The access point used for connectivity can either be a rogue access point or an authorized access point.
Unless the security of the wireless network is very weak, it can be assumed that a rogue access point also exists and [...]

Filed under: WLAN Security

Man-In-The-Middle (MITM) Attack

A man-in-the-middle (MITM) attack occurs when an attacker inserts himself between two devices and is able to read, insert, modify messages between the two devices.
The most difficult part of a MITM attack in wired networks is getting in the middle without being detected. Usually this requires physical access to the network increasing the [...]

Filed under: WLAN Security

WiFi Phishing

Below is the opening sentence from Wikipedia’s entry for “phishing”.
In computing, phishing is a criminal activity using social engineering techniques. Phishers attempt to fraudulently acquire sensitive information, such as usernames, passwords and credit card details, by masquerading as a trustworthy entity in an electronic communication.
The most common example of phishing are emails crafted to look [...]

Filed under: WLAN Security

Rogue Access Points

Wireless LAN security for residential users is mainly about using the proper encryption.
For corporate networks, securing against rogue access points is also important. Rogue access points are access points that are connected to corporate networks without prior approval from network administrators.
In many cases, these rogue access points are connected to company LANs by end [...]

Filed under: WLAN Security