Taking Security+ with no formal study
I've been watching the Professor Messer videos, and most of the material presented seems to be very easy. Is it possible to just walk in and pass the exam? The only material I don't fully get is comparing the different cryptography algorithms, but cryptography is supposed to be only 12% of the SY0-301. Has anyone failed the Security+ doing this? I can't seem to find any internet posts of IT people reporting that they failed.