That's what Reddit says. (http://www.reddit.com/r/technology/comments/2ik43h/belkin_fi...) Belkin, though, didn't say that. Some people thought that Belkin did a remote firmware update on the device. Belkin's own site indicates that firmware updates must be performed through the device's web interface, which, hopefully, can't be reached from the outside network.

Belkin routers apparently talk to "heartbeat.belkin.com", which is really an Amazon AWS instance.