Help on privacy challenges in the digital age.

Hello friends.

I have to give a speech for school and I decided to make it on the challenges of privacy in the digital age because I'm interested in the topic. Now, I want to know what would be the most important topics to talk to my classmates in about 4 minutes and cover a good part of this whole world and make them interested. So, I would like to read your recommendations. Thanks.

age challenges digital digital age friends hello important privacy school speech topic topics