I suspect this would just get ignored as it would sound potentially like a phishing attempt. They'll have it drummed into them that there is no reason for such technical matters to be discussed in that channel and that they should politely brush it off.

Such training will likely be stepped up, making this sort of message more likely to be ignored, after the events at Twitter and Garmin recently which both seem to have stemmed from the phishing variety of "human factors" engineering on the part of the attackers.