No it isn't. Most MACsec-capable platforms have a "must-secure" or "should-secure" transmission mode.
If the security association isn't completed on a "must-secure" configured port then no traffic is transmitted. One would need access to the pre-shared keys to successfully use the link.
Now, could one perform a side-channel attack of the memory on the camera and get access to them? Maybe.
If the security association isn't completed on a "must-secure" configured port then no traffic is transmitted. One would need access to the pre-shared keys to successfully use the link.
Now, could one perform a side-channel attack of the memory on the camera and get access to them? Maybe.