At the end of the day I guess it is just a case of letting your intuition be your guide. Listen to your Higher Self.
If 
they are truly benevolent:
- They will not force anything on us, but will offer themselves as our guides and teachers
 
- They will offer us technology, so long as that in itself, doesn't create a dependency
 
- They will show us our true history, so long as we can verify it somehow
 
- They will respect our freewill
 
- As we awaken, we will have access to all knowledge and not just what they want us to have
 
- We will be presented information from different groups - not just one
 
Of course how we determine what is right and what is not, is a question in itself!
G