Having read about the large number of routers infected by Wifatch, I've realised I don't know how to check whether my router has been infected with this or more malicious malware or what I'd do about it.
Besides changing the default password and checking whether the firmware needs updating for security reasons, what important things should everyone do to secure their router and how could you test that security? Is it simply a case of relying on manufacturers to provide firmware patches for any issues?
I have a Billion Bipac 7800N router, but I'm interested in advice that would also benefit friends and family with different devices, as I'm their de-facto security "expert"!