This. Definitely.
The same letter in the same font above the same spot with a gap in the row of windows would be too much of a coincidence to be anything else.
We know what make and model plane it was and what carrier.
I think it's extremely unlikely that nukes can be launched without a human to bridge the air-gap between communication electronics and missile control. I know for certain that used to be impossible; and I can't fathom them changing the system to make it possible.
The only thing that could conceivably be "hacked" are the codes and comms. But it's doubtful that USN sailors, sitting of the coast of N. America with a limited range weapon, would carry out an order to strike the US or Canada.
Nothing about this adds up.
The closeups of the missile I've seen look like the diameter-to-length ratio of a Trident more than a SM-3, or similar.
But then we have to consider the likelihood of the missile being fired close enough to the camera that we can actually make out the shape of it. The seems…remarkable. I'm suspicious that the image could be fake and that the "hack" was the planting it in the weathercam's system.