Following Dan Kaminsky’s research on DNS insecurities, we saw attackers racing with their DNS servers to hijack network connections. It was only a matter of time before the bad guys decided that racing against DNS was not enough.

DHCP is a widely used network protocol that has been around for a while—it’s used to automatically assign IP addresses on a local network. When you connect your laptop on the wireless router at your home or to your office network, it is most likely that a DHCP server assigns an IP address to your machine and will provide all of the important parameters such as a gateway IP and DNS servers. The DHCP protocol is simple, transparent, and efficient for end users, but it is also non-secure.

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