Help privacy screen lock displays missed calls

[jzfl5h]

Hi all- Newbie here! I set up my phone to have a screen lock...But it still shows the names/phone numbers of missed calls on the bottom of the screen BEFORE the password is entered. How can remove this notification until AFTER the password has been entered.

Or to put it bluntly...how can i keep snoopy people from peeking at my missed call notifications w/o having to keep the phone on my body at all times?

Thanks!