At 3 tk/s, that's still 100-150 pages of a book, give or take.
If it were 2016 and this technology existed but only in 1 t/s, every company would find a way to extract the most leverage out of it.
"Secure" in the sense that they can sue someone after the fact, instead of preventing data from leaking in the first place.
At 3 tk/s, that's still 100-150 pages of a book, give or take.