This guy has no clue what he's doing. Secure lines are available, but he had an unsecure one run into the office. The only thing I can think of is it's to keep things from
internal security.
What sort of things do you suppose he wants to keep from the Pentagon's internal security?
I don't know either, but I can't think of a legitimate reason. Can you?
Defense Secretary Pete Hegseth had an internet connection that bypassed the Pentagon’s security protocols set up in his office to use the Signal messaging app on a personal computer.
apnews.com