Harvard University · CS50 Cybersecurity
CS50's Introduction to Cybersecurity
CS50 网络安全导论
An introduction to securing accounts, data, systems, software, and privacy.
Subject：Cybersecurity
Level：Introductory
Suggested stage：Year 1 (inferred)
Public-material edition：Official course page (year not stated)
Language：English
Videos：Available
Assignments / solutions：Available / Not verified
Prerequisites
No prerequisites.
Start here
All official course content
Lectures, video, assignments and exams are separated so you do not have to hunt through the course homepage.
▶Lectures, video & readingCourse content in the official sequence5
✓Assignments & practiceOpen the matching problem or assignment page5
◆Labs & projectsCourse projects, labs and milestones1
Official resource hubs
Use these to browse a complete resource collection; the section above links directly to individual study items.
Source and verification
Every link points to an official university or course-team page. The year identifies the linked public-material edition, not necessarily the latest on-campus offering; a school may have newer materials that are not public. Unknown facts remain unverified rather than guessed.
Harvard CS50 OpenCourseWare · verified 2026-07-31