The Atlantic has released the entire Signal chat among Trump senior national security officials. It shows that Defense Secretary Pete Hegseth provided the exact times of warplane launches and when bombs would drop — before the men and women flying those attacks against Yemen's Houthis this month on
The Signal Foundation is a non-profit. The non-profit owns an LLC under the same name which publishes and develops the apps.
The software itself is open source, and licensed under AGPLv3, the same permissive license as lemmy and mastodon.
Calling them a private company with no motivation to disclose any failures in their security is pretty clearly untrue in whole.