Cyber security · ⁨사이버 보안⁩

Every lesson runs in your browser — write real code, press Run, and the tasks check themselves. Free, no account needed, with translated notes paired with English. · ⁨모든 수업은 브라우저에서 실행됩니다 — 실제 코드를 작성하고 '실행' 버튼을 누르면 과제가 자동 점검합니다. 무료이며 계정 없이 이용 가능하며, 영문과 짝지어진 번역 메모가 제공됩니다.⁩

Start the course · ⁨과정 시작⁩

Lessons in this course · ⁨이 과정의 수업⁩

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1. history What is cyber security? · ⁨사이버 보안이란 무엇입니까?⁩ Reading and resources
2. usage Why it matters · ⁨왜 중요한가⁩ Reading and resources
3. resources Helpful resources · ⁨유용한 자료⁩ Reading and resources
4. setup Nothing to install · ⁨설치가 필요 없음⁩ Reading and resources
5. 01 Security, privacy and integrity · ⁨보안, 프라이버시 및 무결성⁩ 2 required tasks Video · ⁨영상⁩
6. 02 Malware · ⁨악성 소프트웨어(Malware)⁩ 2 required tasks Video · ⁨영상⁩
7. 03 Attacks and brute force · ⁨공격 및 브루트 포스⁩ 2 required tasks Video · ⁨영상⁩
8. 04 Social engineering · ⁨사회 공학(Social engineering)⁩ 2 required tasks Video · ⁨영상⁩
9. 05 Defending a system · ⁨시스템 방어⁩ 2 required tasks Video · ⁨영상⁩
10. 06 Passwords and authentication · ⁨비밀번호 및 인증⁩ 2 required tasks Video · ⁨영상⁩
11. 07 Storing passwords safely · ⁨비밀번호 안전하게 저장하기⁩ 2 required tasks Video · ⁨영상⁩
12. 08 Encoding is not encryption · ⁨인코딩은 암호화가 아닙니다⁩ 2 required tasks Video · ⁨영상⁩
13. 09 Symmetric encryption · ⁨대칭 암호화(Symmetric encryption)⁩ 2 required tasks Video · ⁨영상⁩
14. 10 Asymmetric encryption · ⁨비대칭 암호화(Asymmetric encryption)⁩ 2 required tasks Video · ⁨영상⁩
15. 11 Hashing and digital signatures · ⁨해싱 및 디지털 서명⁩ 2 required tasks Video · ⁨영상⁩
16. 12 HTTPS, SSL/TLS and certificates · ⁨HTTPS, SSL/TLS 및 인증서⁩ 2 required tasks Video · ⁨영상⁩
17. 13 Data integrity 2 required tasks Video · ⁨영상⁩
18. 14 SQL injection · ⁨SQL 주입攻击(SQL injection)⁩ 2 required tasks Video · ⁨영상⁩
19. 15 Access control and least privilege · ⁨접제어 및 최소 권한⁩ 2 required tasks Video · ⁨영상⁩
20. 16 Ethics, law and staying safe · ⁨윤리, 법률 및 안전 유지⁩ 2 required tasks Video · ⁨영상⁩

Language reference · ⁨언어 참고 자료⁩

/know/reference/python