Playing with a WiFi De-authenticator

Recently a colleague mentioned a small device he'd bought that can perform de-authentication attacks on wireless devices and cause all sorts of mischief - and given we both had an interest in security he loaned me this and I was amazed at how something so freely available and cheap could affect a wireless network in … Continue reading Playing with a WiFi De-authenticator

Preventing Rogue DHCP Servers and Machine to Machine Connectivity on Wireless Networks

A recent post looked at DHCP Snooping on a wired network, which uses a concept of trusted and untrusted ports whereby the genuine DHCP server or uplinks which a genuine DHCP offer could be sent across are marked as trusted, with all other links marked as untrusted. This is great at keeping a wired network secure, … Continue reading Preventing Rogue DHCP Servers and Machine to Machine Connectivity on Wireless Networks