# Metadata: What do phone companies know about us?

- Institution: Gresham College
- Speaker: Professor Martyn Thomas CBE
- Level: For everyone
- Language: English
- Subjects: Computer science, Society and politics
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/metadata-what-do-phone-companies-know-about-us)
- Licence: [Educational use (Gresham College's terms)](https://www.gresham.ac.uk/terms-and-conditions)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

What do our phone calls reveal? Professor Martyn Thomas CBE shows how metadata can be used to deduct human behaviour.

## Lectures

1. [Metadata: What do phone companies know about us?](https://invisiblenetwork.ai/learn/gresham/metadata-what-do-phone-companies-know-about-us/c54a5459ceab) (YouTube)