Malicious commands that can compromize a Linux system

Following up on a previous entry and on K.Mandla’s article, here is a link to a Sotfpedia article by Marius Nestor, inspired by the announcement jdong posted on the Ubuntu forums.
Edit 071203: How did I miss Aysiu’s post

Once again, information and education of the new users is the best answer we can offer, in addition to some adapted moderation rules and actions on the forums that will be discussed during our next Forum Council Meeting (date and time to be set up).

In the mean time, many thanks to the numerous UF members who have changed their signature to warn new users, reported malicious entries and quickly posted warnings in the attacked threads :)