With so many courses and certifications available, what would be the hardest one you have ever done? I know we're all different, and on different levels of skill, area of expertise, and so forth.
But completely honest, I'd like to hear what you think was the hardest for you.
Mainly because, I'm going for the hardest courses available. I like a good challenge
I think OSCE was insane, challenging, fun, and a very good learning experience, but I want to know if there's other practical courses and / or certifications just as challenging or close to. I know OSCP could probably be challenging too, but I was wondering about the other providers of InfoSec courses and certifications.