"What it is
LogMeIn Hamachi is a zero-configuration virtual private networking (VPN) application.
In other words Hamachi is a program that allows you to arrange multiple computers into their own secure network just as if they were connected by a physical network cable.
Hamachi is fast, secure and simple. Its core version is also free.
What's in it for me?
Hamachi gives you LAN over the Internet.
Virtually any application that works over local/home networks can also be used over Hamachi networks.
Technology
Hamachi is a zero-configuration virtual private networking application with an open security architecture and NAT-to-NAT traversal capabilities.
Hamachi is the first application to mix seemingly unrelated networking technologies in one powerful package to deliver an unprecedented level of direct peer-to-peer connectivity. More ...
Security
Hamachi is secure. All Hamachi communications are encrypted and authenticated with industry-standard algorithms and protocols. Nobody will be able to see what two Hamachi peers are talking about. Not even us.
However what is equally important - Hamachi security architecture is completely open meaning that its detailed description is available to anyone interested for review and validation. More ...
Ease of Use
Great effort went into designing and polishing the Hamachi user interface. The result is sleek, simple and intuitive; yet still very functional. Everything you need, nothing you don't.
Hamachi software contains no spyware, bannerware or any other -ware unrelated to its purpose. And it never will."
--Hamachi
