Remember when the OpenSSL stack in Linux had a backdoor engineered into it for years and years, despite many, many "peer reviews"? This situation with the Bitcoin network is extremely vulnerable, and I would go so far to say that it is already compromised. We just haven't found out yet. Based on the personality types involved with developing and maintaining these systems, it's inevitable that a secret king will pocket a whole lot of money to compromise the system because their feelings got hurt.