Kernel.org has been compromised by an intruder gaining root access to parts of their infrastructure which hosts the kernel source code. A number of servers have been accessed, apparently via compromised user credentials. The intruder installed several rootkits and monitored user activity. The intrusion went unnoticed for almost a month until the kernel.org staff discovered it on August 28th. The staff reassured the community in a blog post on kernel.org, stating that the actual repositories themselves are unaffected.