Are there steps needed to ensure no spam sign-ups before I launch my new site?

Hi guys,
I couldn't find a definitive thread on here but maybe I missed it.

I am a week away from launching a new BP site and it has an option for both FREE and Premium signups.

Are there any recommended steps/ plugins that I will need to stop spam sign-ups?

Any help would be massively appreciated!

Thanks! :slight_smile: