Shoppers should take extra care when browsing for certain types of products - such as dash cams and headsets, which had 10 times the number of reviews removed than categories like digital radios.
Have you been basing a buying purchase on fake customer reviews? Which? investigators reveal tricks that sellers use to mislead online shoppers
A fraudster has been jailed for selling fake Tripadvsior reviews to hospitality companies in one of the first cases of its kind. He was the owner of Promo Salento, a company which sold fraudulent listings to business owners to help boost their profiles on the site.