See security banner (also known as notice and consent banners)
Source(s):
CNSSI 4009-2015
under consent banner
1. A persistent visible window on a computer monitor that displays the highest level of data accessible during the current session.
Source(s):
CNSSI 4009-2015
2. The opening screen that informs users of the implications of accessing a computer resource (e.g. consent to monitor).
Source(s):
CNSSI 4009-2015