Quality learning materials. Enjoyed the cryptography systems introduction, especially the one based on GPS coordinates.

this is good , but i think it's gonna be better by including subtitle inside a video.

Well done in American manner :)

Very Nice topic

Thanks Coursera for this course but i am not happy because in mt certificate my name is change so please help me to change my name

Very Good source for beginners and intermediate kb.

Very Good Course

Trash course and rushed.

It really helped me a lot in understanding all the topics with much ease

Excelente curso, material metodología y material complementario!!!

It helped me to learn a lot about the advanced system security

It was a very educative and practically exciting course.

Great course. Offers good understanding of concepts.

the course is not easy but useful for comprehension

Very good cource and very much helpful

great course , there is lots to learn

Nice but not receiving certificate

Nice i like it the notes are awsm

Very professional and very good

Nice and Informative Course.