As reported by Engadget and many others:

According to researchers, anyone who knows where to look can spray digital graffiti on the Department of Government Efficiency (DOGE) website. Two web development experts said the site doesn’t seem to be hosted on government servers and that the database it pulls from can be modified by those who locate it. At the time of writing, a message reading “these ‘experts’ left their database open - roro” is still visible on the DOGE site.

Thanks, I feel much more confident now.