KidRock
Maybe you're not familiar with the hackers around the world, and this is largely due to the fact that the only ones you ever really hear about are 14 y/o Ueberhacker wannabe's with kiddie-script hacks in a can. Not real hackers. They have enough knowledge to be dangerous, but not enough not to do something stupid.
Think back to the 1980's, I'm pretty sure it was 1987 (maybe as early as '84) but a hacker almost took down the Stock Market with a Commedor 64 (10 points to anyone who actually remembers that pre PC computer 😄 ) and a 9600 BAUD (NOT kilo, not Mega bauds...just BAUD) modem. I also believe that he was not caugh, atleast not for some time. Then there were the two, infamous, hacks on both AT&T and AOL between 1996 and 1998 - the hacker behind those attacks is still on the loose, but did not cause any actual damage, and reported the security flaws to the system admin.