[cpeterso]

XP is still a big problem. About 14% of Firefox users are running XP, about the same share as running Windows 10. Google says they will drop support for Chrome on XP and Vista in April 2016. They already extended their XP EOL twice before (from December 2015 and April 2015), so there's a good chance they will need to do it again.

[Pxtl]

I had an old Xp-based laptop running as a file-and-print server. It was behind a router, so not even fully public. Nothing was even running on it besides SMB shares, VNC, and a media server.

Some kind of botnet must have hit it, because one day I got a bandwidth-consumption notice from my ISP and found that an SSH server and a torrent system had been installed.