There was a time when wireless communication is the most reliable way of security for wireless communication data is encrypted, encryption types are many, from the most basic WEP encryption to the WPA encryption. But since last year the encryption are cracked, in succession is first WEP encryption technology by hackers crack in a few minutes; And foreign researchers put TKIP WPA encryption algorithm reverse reduction out clear.
WEP and WPA encryption has been cracked, which makes the current wireless communications can only build Radius authentication server by yourself or connected use to improve the communication security. But WPA2 connected is not all devices support.
USB Wireless Network Adapter |
Another let users the most not trust is due to the flexibility of wireless communication, as long as there is signal, an intruder can through professional wireless data sniffer tools sniffing out the content of the wireless communication packets, Encryption or no encryption, through other means can view to the specific content of the communication data. Such as hidden SSID information, modify the signal emission spectrum method in the presence of wireless data sniffer tools to no avail.
However, fundamentally eliminate wireless sniffer is not too realistic, after all coverage range is one of the features of the wireless network. So wireless data sniffer for wireless communication there is no privacy is a mainly reflects the inherent unsafe.
Modify the MAC address filtering can be evaded:
Although wireless network application provides functions such as MAC address filtering, many users do use this feature to protect wireless network security, but because the MAC address can be modified by the registry or card attributes can forge the MAC address information. So when through wireless data sniffer tools have access to find MAC address communication information, it can be illegal invasion of fake MAC address of the host, so that the MAC address filtering capabilities.
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