Smartphones hold so much of our lives. From our photos to our emails to our texts, there is a lot of personal info housed on our smartphones. Hayley Tsukayama, tech reporter for the Washington Post, joins Marketplace Weekend host Lizzie O’Leary to tell listeners what they should be doing with their smartphone before selling it.

Selling your smartphone is a quick way to make some cash. But a study published earlier this week by the security firm Avast, in which the firm bought some used Android phones and recovered thousands of “erased” personal files, stands as a good reminder that you have to think carefully before you sell.