Once deauthenticated, the attacker would capture the reconnection. The primary issue with WPA2-AES apart from the encryption mode is that an attacker, if suitably positioned, can cause a client to deauthenticate from the wireless network. The reason TKIP is even offered is due to older legacy devices that may not be able to support the more secure encryption mode. By default, most configurations out of the box come with the more secure mode (AES). Within WPA2 there are two encryption modes (AES and TKIP) where one is more secure than the other. Today’s default algorithm is Wi-Fi Protected Access 2 (WPA2) which is also known as WPA2-Personal, and is the successor to two weaker standards (WPA and WEP). Out of the box configurations are common at organizations, and with today’s standards they’re mostly secure. Wireless Security: Default Configurations While the weakest of configurations are seldom seen (e.g., Wired Equivalent Privacy (WEP) from 1999 to 2004), default configurations leave much to be desired, and can be improved without much overhead, especially if the software to support the more secure configuration has already been deployed. Wireless Security varies across organizations when it comes to secure deployments due to the size of the organization, budget constraints, or lack of subject matter experts.
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