No 6 Windows more prone to attacks
lets see some context.
Linux is favoured by the technically literate. These are the types who tend to have better security setups. Linux servers are more likely to be behind firewalls and in locked down corporate systems.
The majority of Windows desktops are protected from the big bad world by no more than the "SOHO" modem/router that got given by their ISP. And average home user is more likely to go near a dodgy site than a server.