Is Network Security a good field?

Only if you're very good. If all you can do is run metasploit on the network you'll be making less than minimum wage.

>>54784000
Pretty full right now

The future is social engineering and mobile attacks, good old hacking is pretty much dead.

>>54785951
it's hardly dead when bounty hunters constantly discover rce vulns on most prominent systems on the internet

>>54786084

well its usually web application, the days off poppin boxes through some common daemons are gone. the most common way is using social engineering, then pivoting your way through the network. though with all of the new embedded devices and custom network architectures, buffer overflows will be seen a lot.