Hello, I have been using wiki for a short time with the intention of having a collective creation space for 7 people.
This month it has been hacked and there are more than 18 thousand users who upload hundreds of pages of irrelevant content.
What do I do to?:
1 Retrieve my content
2 Eliminate the rubbish introduced
3 Prevent new users with or without registrations from uploading content
Thanks for the help