There are 2 types of hackers:

1. Operating System Level hackers; This type of hackers are kids and noobs of hacking community. I never mind if this type of hacker hacks me or not. They are so simple and temporal. An OS format can wipe out the hacker out of the system. Most of Anti-Malwares are protecting from this type of hackers.

2. Hardware Level hackers; They can be persistent and can hack most of the systems with zero day hardware level vulnerabilities. I am targeted by this type of hackers. They can ruin someones life without being detected.

Hardware level hackers, can hack a system with router/modem zero day hardware vulnerability, and then release a fake OS update or a software update that in the OS. Or directly hacks bios or maybe lower hardware chips than bios. No one cant detect anything like this type of hack. And If you want to be World Class hacker, I mean top 1000 of hackers, than this is the way you should go.

Learn bios programming firstly. And than you can improve yourself to be even better hacker like, government class hackers.