Metodo per confermare l'identità di un utente in una sessione di navigazione di un servizio online

Method for confirming the identity of a user (U) in a browsing session of an online service, comprising the steps of: a) providing a web server (1) in which an online service resides, in communication with a client device (2) provided with a user interface (21); b) providing a database (11) associated with the web server (1) in which a plurality of data relating to one or more users (U, U', U") registered to the online service are stored; c) providing a script (22) residing in the client device (2); d) identifying via script (22) each browsing session on the online service and associating it with a user (U) registered to the online service when the latter performs authentication; e) collecting via script (22) biometric data generated by said at least one user interface (21) and associating them with the user (U) when authenticated; f) generating via script (22) machine learning templates as a result of processing the biometric data; g) storing the biometric data and the machine learning templates locally in the client device (2); h) generating a score associated with the user (U) as a result of processing via script (22) new biometric data collected on said at least one user interface (21) as a function of the machine learning templates generated in step f); i) sending the score to the web server (1); 1) verifying the identity of the authenticated user (U) as a result of processing the score by means of a security algorithm (12) residing in the web server (1).