<p>CS50's Introduction to Cybersecurity is a free online course from Harvard University aimed at both technical and non-technical audiences. Learners build an understanding of how to protect accounts, data, systems, and software against current and emerging threats, and how to think about cybersecurity as a trade-off between risk, reward, and usability. The course is self-paced and delivered through Harvard's OpenCourseWare site.</p> <ul> <li>Eligibility: open to all — no prior experience required</li> <li>Duration: about five weeks of material, plus a final project</li> <li>Weekly topics: Securing Accounts, Securing Data, Securing Systems, Securing Software, and Preserving Privacy</li> <li>Instructor: David J. Malan, Harvard University</li> <li>Assignments inspired by real-world events; final project required for completion</li> <li>Cost: free to take via OpenCourseWare; a verified certificate is available for an optional fee through edX</li> </ul> <p>Create an edX account to submit assignments for feedback, or register through Harvard Extension / Summer School if you want transfer credit.</p>