An anonymous reader noted that "Ubuntu had to shutdown 5 of 8 production servers that are sponsored by Canonical, when they started attacking other systems. Canonical blames the community, saying they were community hosted, and were poorly maintained. However, kernel upgrades couldn't be done because of poor backwards compatibility with the very hardware that Canonical had sponsored! While people point fingers at each other it is pretty clear that both sides are equally to blame, the community administrators for practicing bad security practices, such as using unencrypted FTP transfers with accounts, not properly maintaining the system. However Canonical should have been well aware of what they are hosting. The question remains, if any of the files distributed to users have been compromised. A major blow for Canonical though who are attempting to enter the business market with Ubuntu Server."