Πηγές οι παρακάτω σύνδεσμοι:

1. https://www.newyorker.com/magazine/2022/04/25/how-democracies-spy-on-their-citizens

2. https://carnegieendowment.org/2021/07/21/governments-are-using-spyware-on-citizens.-can-they-be-stopped-pub-85019

3. https://www.youtube.com/watch?v=4CvHZxLBdmE