Big tech sharing economy platforms like Airbnb and Uber are marketed as trustworthy, but a new book by a South African media scholar argues that they are highly vulnerable to scammers who spread delusive speech (a form of disinformation, designed to deceive by criminal intent).

Julie Reid draws from first-hand accounts and over 600 cases from around the world of victims lured into scams or physical danger by fake Airbnb reviews and listings, providing a detailed case study.

We asked her five questions about her book.

How do the scams work?