One solution might be preventing automated modifications:
http://www.pmwiki.org/wiki/Cookbook/Captcha
What do you think?
I agree. Captchas seems to be the best approach. But pmwiki-cookbook said: Prerequisites: pmwiki-2.2.0-beta46 The installed version is pmwiki-2.1.21. Is it save to upgrade ? Where could problems pop up ? Should we also update PHP from 5.2.2 to 5.2.3 ? May be I can do some tests on a copy this week. Falk -- Falk Hamann, IT T +49-7191-9669-242, Falk.Hamann@dbaudio.com, www.dbaudio.com d&b audiotechnik AG, Eugen-Adolff-Str. 134, 71522 Backnang, Germany Vorsitzender des Aufsichtsrats: Hilmar Schill; Vorstand: Frank Bothe, Markus Strohmeier Finanzen: Kay Lange, Marketing: Simon Johnston, Vertrieb: Peter Tongue Sitz: Backnang; Amtsgericht - Registergericht - Stuttgart, HRB 270952