// 课程

精通课程.

互动课程——不是死板的 PDF。理论、动手实验、关联挑战和证书。每门课程的第 1 模块免费。

From zero to your first paid bug — how programs work, how to hunt in scope, and how to write a report that gets rewarded.

Turn public information into verified, documented intelligence — the disciplined, ethical way professionals actually work.

The web attack surface end to end — how vulnerabilities arise, how to find them methodically, and how to report them, practised on isolated targets.