Zero day exploits, best explained here, will be coming out daily for the month of January, it seems, due to a security research firm in Russia. No matter what you think about their methods, this does highlight a fact that is sometimes forgotten, every running service presents the potential for an exploit. But without those services a computer is just an overpriced electric heater. So how do we protect ourselves against the unknown and unpatched? By being very careful about what our servers are running, only allowing access to the minimum number of resources required to get the job done, and having a plan for when your monitoring reports the service is down.
Read the rest and comment on my consulting blog.