The average person can go to the DoD and ask them for protection, now that they know they're in danger. Better than dead. That happens whether they know or not, because their friend chose to associate with them in both identities. So yes, they are going to have to live on alert because of what their friend did. Seriously, you need to accept that there are just things about "Classic" Superheroes that are outdated and need to be reconstructed. Like "Keeping it a secret protects people" and "I should play sick mind games with my loved ones".