Sounds like a fake to me. It's trivial to send SMS with spoofed numbers
Discussion
The editor-in-chief is lying, or a bunch of us officials used Signal for business, shared military intelligence, and invited a journalist to the group. Which one is more likely to be the truth? Ehm.
It was pretty dumb if they really didn't mean to do that.
Fuck Schumer.
Still.. seems too dumb.
It seems fake, but who knows
It appears Schumer doesn't know the difference between Signal and SMS.
If they were doing this over Signal, it's a plausable story. I'd like to know why Waltz added Goldberg. I don't care if he claims it was a mistake, he should be booted for such an action. There has to be a better option than Signal...
Honestly the most implausible part is that someone from the Atlantic would be included in a signal group chat. Such a story is very simple to fabricate. If it isn't, I would be looking closely at Waltz's tech for breach.