Twitter veut pouvoir vérifier tous ses utilisateurs C'est ce qu'a déclaré Jack Dorsey, le PDG de la compagnie dans un live sur Periscope. Jack Dorsey, Twitter CEO Jack Dorsey, Twitter CEO Twitter debuted its blue checkmark to signify verified users in 2009. Initially used as a way to identify celebrities, athletes and public figures, the badge was then rolled out to journalists and folks in other careers. David Gasca, Twitter’s director of product David Gasca, Twitter’s director of product