I enjoyed this series of course and you can browse for free and see everything, you just won't get the certificate https://www.edx.org/micromasters/ritx-cyberse

I enjoyed this series of course and you can browse for free and see everything, you just won't get the certificate https://www.edx.org/micromasters/ritx-cybersecurity https://www.edx.org/micromasters/ritx-cybersecurity There is also this, but I haven't viewed it yet https://www.edx.org/course/introduction-to-cybersecurity https://www.edx.org/course/introduction-to-cybersecurity