Global kOS ('kos' pronounced as chaos) were a grey hat (leaning black hat) computer hacker group active from 1996 through 2000, considered a highly influential group who were involved in multiple high-profile security breaches and defacements as well as a releasing notable network security and intrusion tools.
[1][2] Global kOS were involved with the media heavily and were interviewed and profiled by journalist Jon Newton in his blog titled "On The Road in Cyberspace" (OTRiCS[3][4][5][6][7]).
[11] Global kOS were a loose collective of members of other hacking groups active in 1996 who released network and security tools for Windows and Linux.
Global kOS continually reiterated that their goal was entirely about rampaging across the internet and creating as much chaos as they could by releasing automated denial of service tools.
The group was humorous and irreverent in interviews and press releases, they and affiliates openly taunted webmasters through website defacements.
the flagship release for Global kOS was an early point and click denial of service tool[20] which helped to spawn the term 'script kiddie'.