I recently purchased on sale, buy two. get one free, courses from the Teaching Company's The Great Courses. In fact I dipped twice to buy four course and two free.
One of the courses I bought on sale was Thinking about Cybersecurity: From Cyber Crime to Cyber Warfare, Course No. 9523.

Although I've only watched 6 of its 18 lectures, (two NFL games got in the way), I  think it is a course every internet user should look into. Unfortunately it is not on sale now, but every course is on sale at least once every year, usually 70% off.

I've been collecting these coures (first on tape now onVDs),since 1990 was founded in 1990 by Thomas M. Rollins, former Chief Counsel of the United States Senate Committee on Labor and Human Resources.

An interest site that track internet attacks:
blogs and the map
of attacks.
Let the map run for awhile as it realtime see the active attacks.