http://www.slate.com/articles/technology/future_tense/2015/07/wireless_router_security_how_to_secure_this_vulnerable_point_of_your_wi.html

You probably don’t spend much time thinking about your wireless router—until it stops working, that is. Our inattention to routers has been a security problem for years, most recently last week when Brian Krebs reported that researchers at the Fujitsu Security Operations Center had discovered hundreds of routers were being used to spread a financial fraud malware called Dyre.