"Researchers at website security firm Sucuri recently uncovered a botnet that was leveraging 25,000 surveillance cameras to carry out a distributed denial of service attack against one of their customers."
http://www.securityinfowatch.com/article/12227605/hackers-use-25k-cameras-to-carry-out-botnet-attack
Sounds very similar to a recent post about excessive login attempts coming from the IP of a wireless access point...
Another example of unsecured or vulnerable devices left on the internet...