The Holy Bible instructs us to "Test the spirits to see if they are from God."
Moreover, the likelihood of a true prophet walking the streets today is remote. I just don't see why the Almighty would employ one. Everything that needed to be said, has already been said through Old Testament prophets of God and through His only begotten Son, Christ Yeshua (Jesus).
P.S. A true prophet must be correct 100% of the time otherwise he is a charlatan.