Appeal to authority, our government never lies
That was not an appeal to authority. To say it was is to say that anti-vaxxers, creationists, and jaden smith should all have equal say in how things in the respective fields are run. The trained professionals (whether that be in vaccination sciences or computer forensics) are called trained professionals for a reason: They objectively have vastly more knowledge on how the relevant systems function, how to use those systems, how to identify things within those systems, etc... than the average person does.
There's actually a name for this in the literature; It's called authority. You may have heard phrases like "He's the worlds foremost authority on Vaccines" or something like that. They're called authority not because what they say is taken for granted (Which
would be the informal fallacy known as an "Appeal to Authority"), but because what they say is grounded in objective facts that have been systematically collected, organized and structured into coherent theories over decades and decades of research, and they have the utmost knowledge about them.
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