Table of contents
1. Lights and shadows of online religious freedom – 2. The opaque rules of social networks and the balance between hate speech and freedom of worship – 3. Big data and religious affiliation between profiling risks and security needs – 4. Religious freedom of minors on new media and the duty of parental protection.

Abstract
The contribution examines the impact of the new digital and telematic communication tools and of the web on fundamental rights, and specifically on the right to religious freedom, highlighting the opportunities and possible pitfalls