Very informational, perfect for a beginner to network security. Loved it!

Another great course! Looking forward to completing the specialisation.

A very good course to learn about network and database vulnerabilities

Well structured course. Covered all basics with ample demonstration.

Great Course to learn about databases and network vulnerabilities

Very Good Course and Contents. The resource people were excellent

Learned several topics never covered in my masters degree in IT.

It was a really good course. The SQL injection part is awesome.

lots of knowledge gain about networking and their vulnerability

Effective and Valuable knowledge course on Network Security

The course was very useful and surely i will do many course

Pretty good content, but sometimes the audio is not good.

great and thanks..IBM and coursera for such opportunity..

it was great....i finally completed whole specialization

The course was useful and relevant in many career fields

Excellent material, excellent narration and instruction

A good course to learn about networking and databases.

This course exceptional. I bet you to give it a shot.

Good course to improve

knowledge in network security

well-groomed topics and great explanation of topics

week4 segments were helpful and contain great info.

Excelente curso, con ejemplos practicos de ataques

There was a lot of good information in this course

I learned a lot about injections and bad practices

Excellent program to approach deeply to security!