> Is there any possibility of a backdoor? In a transceiver, I find it quite unlikely. Usually the main question is to ask, what would the benefit and cost of th

> Is there any possibility of a backdoor? In a transceiver, I find it quite unlikely. Usually the main question is to ask, what would the benefit and cost of that backdoor be (and the risk of discovery). So if Huawei managed to backdoor that transceiver, what could they accomplish with it? Chain it to exploit some vulnerability in the router the component is plugged into. Include a bunch of extra hardware and a capacitor, to allow it to surge the port on command to try and burn out your router? Try and sniff intelligence on that 1.25gbps connection, using some tiny low power embedded processor? If your worth investing in an attack against, their are probably far cheaper ways to attack you specifically, instead of backdooring every transceiver and hoping you end up getting one. Now, if you're the government your threat model might look a bit different, although, a transceiver is still a hard component to do something useful with a backdoor.