When you get a mail pretending to come from “C&CZ” or “RU Administrator” asking you to mail or provide your username and password to some website in order to prevent problems: do not fall for this. Because if you do react, you will cause problems! Internet criminals will use the credentials to spread spam through our mailservers. They will also have access to all of your mail on the IMAP server and all of your files. The past few weeks no less than five FNWI employees and students fell for such a phishing mail, with serious consequences for all users.