I don't really think about how the calls and texts I send on my phone could contain information about me, but researchers have found that this data can be quite revealing.
Those taking part in the study had to download an app and give consent for their mobile phone data to be used. Data scientists were able to find the identity and location of nearly all participants. The findings may be used to campaign for stricter rules about how our data is handled.
Hearing this story has made me think twice about the data I'm emitting and how private our lives really are.