Fellow TOS fansite Tree of Savior Fan Base was recently hacked with spam emails sent out to everyone registered on the site.
"IMPORTANT: TOSBase has been hacked and used to send fake emails with Flash's email address containing phishing links, DELETE IMMEDIATELY THESE EMAILS
Flash will NEVER send you this kind of emails!!!"
Flash will NEVER send you this kind of emails!!!"
Source: Tree of Savior Official Forums 2015 Oct. 10
This was further confirmed by the site admin Flash himself.
"They only deleted TOSBase stuff (our translator files got a little note "dontwanntotouchthis") so it was only about sending the scam mail and deleting my work."
Source: Tree of Savior Official Forums 2015 Oct. 10
According to Flash, they do have backups of all files, but forum users, topics, posts, skill builds, and views between September 14th and yesterday have been deleted by the hackers. They will be looking into how to better secure their server against future attacks.
Best of luck to you, Flash.
Just call me The Gardener.