Russian-born tech entrepreneur Pavel Durov has founded wildly popular social networks as well as a cryptocurrency, amassed a multi-billion-dollar fortune and locked horns with authorities not just in Russia but around the world.
Still a few months shy of his 40th birthday, the man once dubbed the "Russian Zuckerberg" after Facebook founder Mark Zuckerberg now finds himself under arrest in France after being sensationally detained at a Paris airport this weekend.
