This have also caught the attention of Notch at minecraft.net so i wonder why noone posts it here, having 3000+
servers, with people using also outside servers, admins might want to let their users know. so here it is..
Some plugins where compromised by malisous people..
full article here..
List of Minecraft Account Passwords Found in the Wild and Server Security Issues | Bukkit Forums
We urge everyone in the Minecraft community to change their Minecraft.net passwords ASAP. Please read below for tips on how to create a better password before doing so.
It recently came to our attention that a list of approximately 1,000 Minecraft account names and passwords were made freely available on the internet. We believe this list consists of information collected by a group of malicious users from a well known "griefing team". How the information in this list was obtained is not sure, but we suspect they collected them through the use of hacked clients that pretend to only give you extra features like flying or seeing through blocks but actually send your account information to the creators as well.