HackNowHackNowBu sinf Premium obuna talab qiladi
Xavfsiz kodlash tamoyillari — input validation, output encoding. Bu sinf Iron Bastion path, Dasturiy ta'minot xavfsizligi moduliga tegishli.
Dastlabki 3 ta yo'nalish — Cyber Horizons, Ground Zero, First Blood — bepul.