We send out a monthly internal newsletter to management summarizing what we did that month in layman's terms.
We also include info about major security breaches, hacks or system failures that affected other companies along with a short explanation about why it didn't affect us.
It still goes over the head of management, but it gives them the feeling we're smart, on top of things, and important.
IT PR good managers do to sell the team and keep them off the block when layoffs happen because of say poor investment decisions like commercial real estate as that market plummets