I Got A Question On Eprotect.

well i am almost done with my map and about to release the beta (so i can find more fixes onces there is more people playing it) and i know how to use eprotect and have been using.. but i heard that if u dont put a password in when you protect it, protecting it wont take up so much room,

heres my question...

if you dont protect it with a password cant anyone that has eprotect just unprotect it without a password?

cause my map is getting pritty big.. and i dont want to make it even bigger.