Brain Kreb's today has an interesting blog "Fortune 500s Unwittingly Become Spammers" that I think fits in nicely with a blog I wrote yesterday Battling botnets. My blog was a review of a series of recommendations from different security experts that Computerworld did on how to battle bots.
One of their recommendations was to "scan the horizon". In particular, they recommended scanning all outgoing email for spam. The reason was that when your malware defenses fail, this is one of the ways of telling it when the malware begins to send spam out through the firewall.
This is exactly what Brian Kreb's talks about in his blog that recently happened to several Fortune 500 companies including Oracle, HP Home Depot, ExxonMobil and Electronic Arts to name just a few.
My point in this blog is to point out the obvious. When companies like Oracle and HP are caught by malware infections, this is serious since these companies have pretty rigorous layered defenses. The follow on thought is that it means that most other enterprises out there are likely getting infected.
More on this in the next blog.