Pre-Shared Keys (WEP, WPA/WPA2-Personal) - Meraki Documentation
A pre-shared key (PSK) allows anyone who has the key to use the wireless network.
Wired Equivalent Privacy (WEP) is the original 802.11 pre-shared key mechanism, utilizing RC4 encryption. WEP is vulnerable to being hacked; the encryption key can be derived by an eavesdropper who sees enough traffic. Only use WEP if it is not possible to utilize more advanced security—for instance, when there are legacy client devices in the network that do not support WPA/WPA2.
WPA- and WPA2-Personal (Wi-Fi Protected Access) use stronger encryption than WEP. (WPA-Personal uses TKIP with RC4 encryption, while WPA2- Personal uses AES encryption.) WPA2-Personal is preferred.
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