Windows comes with a firewall. Now, if you go and disable all security, set it to have an admin password of "password", etc then maybe its an easy "hack". But it'd be the exact same thing as Unix or Linux.
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<br>Securing a Windows server box is typically as simple as setting good passwords, keeping it patched and leaving the firewall on. Which is exactly how hard it is to secure a Linux/Unix box.
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<br>Of course, I'm a technical manager in charge of designing secured network software on Windows and you use a completely different technology...but maybe you know more about it than I do. Or maybe you're just full of shit.