He took his set, copied them to a supposedly safe server in Russia, and deleted everything about them at his end.
About 6 weeks later he discovered the Russians had lied to him about security on that server (Ha, ha, ha, ha, ~ oh, tie me up until I stop laughing ~ ha, ha, ha, ha, ha).
No one hacked it. Odds are there's an index page copy on Google.com.
Someone looking for "Climate", "Jones", "Mann" simply ran into the neatly organized files on the Russian server, copied them over and began reading the goodies.
The lesson ~ when you engage in lies they may catch up to you.
Now back to Dr Pachauri, he may well keep his select file of pornographic pictures on that same server.
YES!