8. Heimdal Security
From the same firm that brought you The Daily Security tip comes Heimdal Security’s Cyber Security Course for Beginners. Although this, too, is email-based, its syllabus is significantly more extensive than that of The Daily Security Tip.
The Cyber Security Course for Beginners delivers a new lesson every two days for five weeks, and all without the need to pay back any tuition loans. In terms of content, it aims to give you step-by-step advice for keeping your personal data out of nefarious hands